
a) Discuss the advantages and disadvantages of DBMS.
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Briefly define three level of data abstraction
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Briefly define three level of data abstraction
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b) Why is relation database approach better than carlier methods?
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Consider the following table
client (client_no, name, city, pin_code, state, bul_due)
product(product_no, description, unit, sell_price, codt_price)
salesman(salesman_no , name, city, pin code, sal_amt, tgt__to_get,yet_sal)
Write SQL for each of following:
Create the above tables.
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Draw an ER diagram for The Book Club. It has members to whom the books are sold. The books are made available at different places in the citycalled Book Club Chapter to make it easy to members. The books are identifies by a book _id, the author and the publisher. An author can write more than one book and a book can have more than one author. Members have information such as Membership _id, Name, Phone# and status. A member can place more than one order. Choose additional attributes for the schema that seems appropriate. Mention any
assumptions you make. Show minimum and maximum cardinality ratios
based on the assumptions.
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Consider the following MAILORDER relational schema describing the data for a mail order company.
PARTS(Pno, Pname, Qoh, Price, Olevel)
CUSTOMERS(Cno, Cname, Street, Zip, Phone)
EMPLOYEES(Eno, Ename, Zip, HireDate)
ZIP CODES(Zip, city)
ORDERS(One, Cno, Eno, received, Shipped)
ODETAILS(Ono. Pno. Qty)
The attribute names are selfexplanatory:Qoh stands for quantity on hand. Specify the following queries using Relational Algebra:
List the name of parts that costs less than Rs. 200
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Consider the following MAILORDER relational schema describing the data for a mail order company.
PARTS(Pno, Pname, Qoh, Price, Olevel)
CUSTOMERS(Cno, Cname, Street, Zip, Phone)
EMPLOYEES(Eno, Ename, Zip, HireDate)
ZIP CODES(Zip, city)
ORDERS(One, Cno, Eno, received, Shipped)
ODETAILS(Ono. Pno. Qty)
The attribute names are selfexplanatory:Qoh stands for quantity on hand. Specify the following queries using Relational Algebra:
List the name of customers who have ordered parts from employees living in Mumbai.
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Consider the following MAILORDER relational schema describing the data for a mail order company.
PARTS(Pno, Pname, Qoh, Price, Olevel)
CUSTOMERS(Cno, Cname, Street, Zip, Phone)
EMPLOYEES(Eno, Ename, Zip, HireDate)
ZIP CODES(Zip, city)
ORDERS(One, Cno, Eno, received, Shipped)
ODETAILS(Ono. Pno. Qty)
The attribute names are selfexplanatory:Qoh stands for quantity on hand. Specify the following queries using Relational Algebra:
List the name of customers who have placed exactly two orders
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Construct appropriate tables for the above ER diagram.
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b) Explain Multivalued dependencies with the help of examples.
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Construct appropriate tables for the above ER diagram.
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Consider the following relational schema: Emp (cmpno, ename, job, sal, comm., hiredate, deptno)
Dept (deptno, dname, location)
Give an expression in SQL for the following Queries:
a) Find the names of employees who work in deptno 10 and 20.
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Consider the following relational schema: Emp (cmpno, ename, job, sal, comm., hiredate, deptno)
Dept (deptno, dname, location)
Give an expression in SQL for the following Queries:
d) Create the table Dept.
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Differentiate between physical and logical data independence.
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Define strong and weak entity.
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Define primary key and candidate key.
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Define entity integrity and referential integrity constraint
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Define domain constraint and union compatible.
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Define update and insertion anomalies.
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Define starvation and time stamp.
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Define Schedule and serialisability.
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Define binary locking and multiple locking.
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Write syntax of UPDATE and INSERT command.
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Design and explain the ER diagram of college database with following consideration also indicate the relationship cardinality.
College keeps the track of students, faculties, departments and courses organized by various department.
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Design and explain the ER diagram of college database with following consideration also indicate the relationship cardinality.
College contains various departments and each department is assigned a unique id and Some faculty members are also appointed to each department and one of them at as head of me department.
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A number of courses are conducted by each department and ench course is assigned a unique id, name and duration.
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Faculty information contains id, name, address, basic salary and phone. A faculty member is assigned to only one department but can teach various course of other departments.
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Smdent's information contains roll number (unique), name, address, marks and age. A student can opt one course only.
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Guardian information is also kept along with cach student, which keeps guardian name, age address and phone.
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Explain sub class, super class, generalization and specialization with example.
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Discuss three tier architecture of database management system in detail. Explain each term used in the architecture. Write its advantages.
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What are the drawbacks of file management system explain them?
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Consider the following table
client (client_no, name, city, pin_code, state, bul_due)
product(product_no, description, unit, sell_price, codt_price)
salesman(salesman_no , name, city, pin code, sal_amt, tgt__to_get,yet_sal)
Write SQL for each of following:
List all sales man who are located in Bombay and have salary equal to 20000.
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Consider the following table
client (client_no, name, city, pin_code, state, bul_due)
product(product_no, description, unit, sell_price, codt_price)
salesman(salesman_no , name, city, pin code, sal_amt, tgt__to_get,yet_sal)
Write SQL for each of following:
Add column telephone of data type number and size 10 to client
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Consider the following table
client (client_no, name, city, pin_code, state, bul_due)
product(product_no, description, unit, sell_price, codt_price)
salesman(salesman_no , name, city, pin code, sal_amt, tgt__to_get,yet_sal)
Write SQL for each of following:
Change size of sel_price to (10,2)
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Consider the following table
client (client_no, name, city, pin_code, state, bul_due)
product(product_no, description, unit, sell_price, codt_price)
salesman(salesman_no , name, city, pin code, sal_amt, tgt__to_get,yet_sal)
Write SQL for each of following:
Change name of salesman to s_man
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Explain aggregate functions with example.
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Explain LIKE, GROUP BY, ORDER BY AND HAVING clause with example.Explain
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Explain numeric functions with example.
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What is normalization? Explain in detail INF, 2NF and 3NF with example of each.
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What is functional dependency? Explain trivial and non trivial dependency.
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What are basic set operstions? Explain with example.
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Write the steps to convert ER model to Relational model.
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What is a transaction? Explain ACID properties.
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What do you mean by concurrent transaction? Explain the problems of concurrent transaction.
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What is deadlock? Explain the wait  die and wound wat scheme for deadlock prevention.
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What is locking? Explain 2Phase Locking.
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Explain the difference between physical and logical data independence.
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List differences between file processing and a DBMS.
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What is generalization and specialization? What is specialization and generalization hierarchies and lattices?
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Explain aggregation with an example.
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What is entity integrity, referential integrity and foreign keys? Explain.
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Consider the relational database. Employee person names, street, city
Works (person name, compname, salary) Company (compname, city) Manages (person name, manager name) Write the queries in relational algebra and SOL i) Find the names, street address, and cities of residence of all employees who work for
First Bank Corp and earn more than Rs. 10K/month. ii) Find the names of all managers whose employees work for First Bank Corp.
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What do you mean by functional dependency?
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State inference rules of functional dependency?
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Consider the following relation: STUDENT (Subject, Student, Faculty, Term, Grade) Each student receives only one grade in a subject during a terminal examination. A student
can take many subjects and each subject can have more than one faculty in a terminal. Define FD and MVD for this relation. Check the normal form for the relation. If necessary, further normalize.
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Explain what is convert channel. Explain polyinstantiation.
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Define authorization and security in the database.
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Discuss about Statistical database.
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Explain timestamp ordering protocol.
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What is woundwait and wait die? Explain.
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Discuss the relative advantages of centralized and distributed databases.
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When it is useful to have replication or fragmentation of data?
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Explain: fragmentation transparency, replication transparency, location transparency and naming transparency.
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What is a data model? How schema is different from instances? Give examples.
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Name different database users and explain the responsibilities of DBA.
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What do you mean by mapping constraints? Distinguish between primary key and foreign key.
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What do you mean by ISA relationship? Explain the concept of aggregation with a suitable example.
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Consider the relational schema: employee (employee no, name, office,age) books(isbn, title, authors, publisher) loan(employee no, isbn, date) Find the names of employees who have borrowed a book published by McGrawHill, write this query in relational algebra
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Consider the relational schema: employee (employee no, name, office,age) books(isbn, title, authors, publisher) loan(employee no, isbn, date) Find the names of employees who have borrowed all books published by McGraw Hil, write this query in relational algebra.
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Consider the relational schema: employee (employee no, name, office,age) books(isbn, title, authors, publisher) loan(employee no, isbn, date) Find the names of employees who have borrowed more than six different published book by McGrawHil, write this query in relational algebra.
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Consider the relational schema: employee (employee no, name, office,age) books(isbn, title, authors, publisher) loan(employee no, isbn, date) Find the names of employees who have borrowed more than six different book publishedby McGrawHill.
write this query in relational algebra.
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Consider the relational schema: employee (employee no, name, office,age) books(isbn, title, authors, publisher) loan(employee no, isbn, date) For each publisher , find the names of employees who have borrowed more than seven books of that publishers, write this query in relational algebra.
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Why do we normalize a database? What are different normal forms?
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What is DKNE? Explain multivalued dependency.
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What do you mean by referential integrity constraint? Explain.
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What do you mean by data encryption? Why do we need statistical databases?
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Define transaction. Discuss the problems associated with concurrent execution of multiple transactions.
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Explain timestamp ordering protocol for concurrency control.
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What are the fragments of relations in distributed systems?
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Discuss the advantages of Distributed Database Management System.
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What do you mean by Database Management System? Why it is needed?
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Differentiate conventional file system and a DBMS.
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Explain the advantages and applications of a DBMS.
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Explain the use of DML commands.
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Write short notes on database Models.
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Write short notes on architecture of DBMS.
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Write short notes on data Abstraction.
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Write short notes on data Independence.
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What do you understand by "Conceptual Modelling". Explain.
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What are mapping Cardinalties?
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Define Tangible and Nontangible entity.
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Define Entity Type and Entity set
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Define Simple and Composite attributes.
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Define Stored and Derived attributes.
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Define Single and multivalued attributes.
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Define Strong and weak entity sets.
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Why the ER diagrams are needed? Explain different ER diagram notations and naming conventions.
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what are the different types of Relationships between Entities?
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Give some features of Good Relational Design.
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What do you understand by "NORMALISATION"concept? Give its advantages.
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What are aggregate operators? Explain with examples.
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Discuss various Normal forms upto 3nd in detail. Give suitable examples.
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Explain the working of set operators with the help of suitable examples.
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What are uses of Reports in MSAccess? How are they created?
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Explain nested queries with suitable examples.
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Write short notes on Codd's Rules.
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Write short notes on Foreign Key Constraints.
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Write short notes on Use of creating views.
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Write short notes on Functional Dependencies.
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Write short notes on Data types in MSAccess.
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Write short notes on Concurrency.
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Explain what are database views?
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Draw an ER diagram for a garment sales company dealing with different types of garments like shirts, pants, shorts and vests. The company keeps the information
about warehouses, vendors and customers. Choose the attributes in such a way that
they are sufficient to represent an entity.
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What are functional dependencies? Explain Amstrong's Axioms.
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Differentiate between 2NF and 3NF with a suitable example.
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Differentiate between a lossy join and a lossless join with suitable example.
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What are the various rules for database decomposition? Explain.
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List the twelve Codd rules.
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Explain the three bered architecture or RDBMS. What are the various levels of abstraction?
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Explain the various integrity constraints.
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Explain the various operations of SQL DML with suitable examples.
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What are aggregate functions in SQL? Explain.
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What are nested queries? Explain with suitable example.
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Why null values are important in a database? Explain.
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Explain the following terms:
a) Primary key
b) Foreign Key
C) Entity Set
d) Relationship Sct
c) Data independance
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Write short notes about SQL DDL
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Write short notes about Database Administrator.
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Write short notes about Extended Entity Relationship Features
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Define the term Foreign Key.
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Define the term Hashing
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Define the term Database.
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Define the term Database recovery
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Define the term Inheritance
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Define the term Constructers
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Define the term Data Dictionary
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Define the term SOL
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Define the term Normaligation
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Define the term Full functional dependency.
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What is database tuning? How is it useful and used? How is it related with database design? Explain in detail with suitable examples.
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Describe various hashing functions with their relative merits and demerits.What problems we may face in hashing and how these can be revolved?
Discuss briefly.
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Design any three tables of your choice related to your college and normalize them upto 3NF (at least).
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What is Query Processing? How is it useful and implemented? Explain in detail with examples.
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Differentiate between simple database and objectoriented database with examples in terms of Design.
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Differentiate between simple database and objectoriented database with examples in terms of Uses.
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Differentiate between simple database and objectoriented database with examples in terms of Advantages.
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Differentiate between simple database and objectoriented database with examples in terms of Disadvantages.
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Write short notes on the Relational algebra.
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Write short notes on the Data base security.
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Write short notes on the Programming using SQL.
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What is timestamp based protocol?
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Distinguish between nonserializable and serializable schedules.
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Define the concept of minimal cover
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Discuss the ACID properties of a transaction.
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What is the lossless join decomposition?
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What do you understand by DCL commands?
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How is a weak entity set different from a strong entity set?
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Write the syntax of selection and projection operations in relational algebra.
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Differentiate between equi join and natural join.
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When is a query called relationally complete?
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Consider the following MAILORDER relational schema describing the data for a mail order company.
PARTS(Pno, Pname, Qoh, Price, Olevel)
CUSTOMERS(Cno, Cname, Street, Zip, Phone)
EMPLOYEES(Eno, Ename, Zip, HireDate)
ZIP CODES(Zip, city)
ORDERS(One, Cno, Eno, received, Shipped)
ODETAILS(Ono. Pno. Qty)
The attribute names are selfexplanatory:Qoh stands for quantity on hand. Specify the following queries using Relational Algebra:
List the name and cities of employees who have taken orders for parts costing more than Rs.500
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What is the purpose of integrity constrain in SOL?
This question has 1 answers so far.


What is the difference between WHERE and HAVING clause?
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Differentiate between Outer and Inner Join operations?
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Define BCNF. How is different from 3NF? Present an example of a relation in 3NF that is not in BCNF.
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What is a concurrent transition? What are the problems associated with concurrency?
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What is a twophase locking protocol? How does it guarantee serializability?
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What is a timestamp? How does the system generate timestamps?
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What are the rules followed to ensure serializibility in multiversion techniques based on timestamp ordering?
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What is a deadlock? How are deadlocks handled? What is deadlock prevention and how is it different from deadlock detection and deadlock recovery?
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Write notes on Checkpoints.
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Write notes on Triggers and Assertions
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Write notes on EER Model
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A table R has attributes A,B,C,D,E and satisfies the following functional dependencies:
A>BC
B> D
CD>E
E> A
What are the candidate keys?
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A table R has attributes A,B,C,D,E and satisfies the following functional dependencies:
A>BC
B> D
CD>E
E> A
Is this table in 2NF/3NF/BCNF?
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Differentiate between Database and D.B.M.S
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What is Data Abstraction? Explain
This question has 0 answers so far.


Explain the difference between physical and logical data independence.
This question has 0 answers so far.


What do you understand by the term "Data Dictionary?
This question has 0 answers so far.


Explain the terms "Entity Set" and "Relationship Set".
This question has 0 answers so far.


What are derived attributes? Explain with an example.
This question has 0 answers so far.


Explain the difference between a weak and a strong entity set.
This question has 0 answers so far.


Explain the Project Operation of a relational model.
This question has 0 answers so far.


What are the components of DBMS? Explain the each component in detail.
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Explain the distinctions among the tems primary key, candidate key and superkey
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Explain the relational, hierarchical and network models. Also explain their advantages and disadvantages.
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Construct an ER diagram for a hospital with a set of patients and a set of medical doctors. Associate with each patient a log of the various tests and examinations conducted.
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What are mapping cardinalities?
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Discuss the normal forms usingFunctional Dependencies
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Discuss the normal forms using Multi valued Dependencies
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Discuss the normal forms using Join Dependencies
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What are the data types supported by MSACCESS?
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Explain the following SQL commands by taking a suitable example.
Create table
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Explain the following SQL commands by taking a suitable example.
Insert
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Explain the following SQL commands by taking a suitable example.
Update
This question has 0 answers so far.


Explain the following SQL commands by taking a suitable example.
Delete
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Explain the referential integrity constraint between two relations.
This question has 0 answers so far.


What are the three ways of creating a form in MSACCESS database? Explain the purposes of using forms and labele in MSACCESS
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List and explain the Codd's rules for RDBMS How many rules are satisfied by MS ACCESS?
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Explain Database end users.
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What is entity? Explain strong and weak entity.
This question has 0 answers so far.


Define Insért, Update and Delete anomalies.
This question has 0 answers so far.


Define aggregation and generalization.
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What do you mean by data independence? Explain physical and logical data independence.
This question has 0 answers so far.


List the advantage of Database Management System over Traditional File Based System.
This question has 0 answers so far.


What is data abstraction? Explain all three level of abstraction.
This question has 0 answers so far.


Explain Different data models with their relative advantage.
This question has 0 answers so far.


Who is Database Administrator (DBA)? Explain the role and responsibilities of DBA.
This question has 0 answers so far.


Explain 1", 2nd and 3rd Normal forms with example. Draw an ER diagram for college database, also find out entities, their attributes and relationship among them, whose points are given below
One student can opt one course but one course can opt by many students.
This question has 0 answers so far.


Explain 1", 2nd and 3rd Normal forms with example. Draw an ER diagram for college database, also find out entities, their attributes and relationship among them, whose points are given below
One course can be taught by many faculties and one faculty can taught many courses.
This question has 0 answers so far.


Explain 1", 2nd and 3rd Normal forms with example. Draw an ER diagram for college database, also find out entities, their attributes and relationship among them, whose points are given below
In a department there can be any number of faculty members but each faculty member belongs to one department only.
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Explain 1", 2nd and 3rd Normal forms with example. Draw an ER diagram for college database, also find out entities, their attributes and relationship among them, whose points are given below
Many students can enrolled in one department but a student can not enrolled in more then one department.
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Explain 1", 2nd and 3rd Normal forms with example. Draw an ER diagram for college database, also find out entities, their attributes and relationship among them, whose points are given below
A student can have more then one local guardian but one guardian is assumed to be relate to one student only
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What is an attribute? Explain types of attribute used in ER model with example
This question has 0 answers so far.


What are Basic Set Operations? Explain with example
This question has 0 answers so far.


Define candidate key, primary key and alternate key.
This question has 0 answers so far.


Define Domain constraint, Primary key constraint, and Referential Integrity constraints
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Explain 1", 2nd and 3* Normal forms with example.
This question has 0 answers so far.


Define Functional Dependency.
This question has 0 answers so far.


What do you mean by Update, Insert and Delete anomalies? Discuss in detail
This question has 0 answers so far.


Consider the relation Library (member_id, member_namne, member_address, book_codebook_name, issue_date, return_date), this relation boxes information about issue and retum of books in a library to its member. A member can be issued many different books but one copy of same book.
What anomalies can occur in the above relation
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Consider the relation Library (member_id, member_namne, member_address, book_codebook_name, issue_date, return_date), this relation boxes information about issue and retum of books in a library to its member. A member can be issued many different books but one copy of same book.
What are the functional dependencies in the above relation
This question has 0 answers so far.


Consider the relation Library (member_id, member_namne, member_address, book_codebook_name, issue_date, return_date), this relation boxes information about issue and retum of books in a library to its member. A member can be issued many different books but one copy of same book.
Normalize the above relation up to 3 normal form
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Define tuple and attribute
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Consider the following table
Employee(eid, name, sal, deptt, job)
Write SQL for each of following:
Create Employee table.
This question has 0 answers so far.


Consider the following table
Employee(eid, name, sal, deptt, job)
Write SQL for each of following:
Add a attribute address in above table.
This question has 0 answers so far.


Consider the following table
Employee(eid, name, sal, deptt, job)
Write SQL for each of following:
Find the name of employee having maximum sal.
This question has 0 answers so far.


Consider the following table
Employee(eid, name, sal, deptt, job)
Write SQL for each of following:
Find the name of employee whose name begins with's
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Write the syntax of Insert and Delete command.
This question has 0 answers so far.


What are aggregate functions? Explain with example.
This question has 0 answers so far.


Write short note on data type used in MSAccess
This question has 0 answers so far.


Write steps to create report in MSAccess.
This question has 0 answers so far.


Compare and contrast the Traditional File Based System with Database Management System
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What do you mean by data independence? Explain physical and logical data independence
This question has 0 answers so far.


Who is Database Administrator (DBA)? Explain the role and responsibilities of DBA.
This question has 0 answers so far.


What are the main features of ER model? Define strong and weak entity set.
This question has 0 answers so far.


State the difference between Generalization and Specialization with example.
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Define OnetoOne, OnetoMany and ManytoMany relationship cardinality between two entity sets with example.
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Define Domain constraint, Primary key constraint, and Referential Integrity constraints.
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Define candidate key, primary key and alternate key
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What are Basic Set Operations? Explain with example.
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Write short notes on What is data redundancy?
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Write short notes on Discuss various types of keys in relational data model.
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Write short notes on Distinguish between logical and physical data independence.
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What are the rules for decomposition of relations? Explain
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How does the concept of an object in the object oriented model differ from the concept of an entity in the entity relationship model?
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What are the major functions performed by the DBMS? Explain
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Explain the role of database administrator.
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Explain the three tiered architecture of relational model.
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Explain the advantages of DBMS over a file system
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Explain the 12 Codd Rules for relational model.
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What are database views? How the views are created? Explain.
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Design an ER diagram for keeping track of the exploits of your favourite cricket team. You should store the matches played, the scores in each match, the
players in each match, and individual player statistics for each match Convert it
to tables.
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Explain various attribute types.
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What is normalization? Explain third normal form with a suitable example.
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What is schema refinement? Explain
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What is functional dependency? Given Relation R (A, B, C, D, E) satisfies that
following functional dependencies:
AB>C
C>A
BC>D
ACD>B
BE>C
Find out the closure of FD'S.
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What are various types of anomalies that can occur in a relational database?How they can be removed? Explain with an example
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Explain various SQL DDL commands with proper example.
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How integrity constraints are enforced in SOL? Explain
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Write down the following queries in SQLSuppliers (sno, sname, pincode, city)
Parts (pno, pname, color weight)
Projects (projno, projname, city)
Shipments (sno, pno, projno)
(a) Get supplier name and city for suppliers who supply to any project with a 'red'
colored part.
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Write down the following queries in SQLSuppliers (sno, sname, pincode, city)
Parts (pno, pname, color weight)
Projects (projno, projname, city)
Shipments (sno, pno, projno)
Get part name, color and project name supplied by supplier with sno's 2
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Write down the following queries in SQLSuppliers (sno, sname, pincode, city)
Parts (pno, pname, color weight)
Projects (projno, projname, city)
Shipments (sno, pno, projno)
Get the total number of suppliers who supplied part with pno '1'.
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Discuss the advantages and disadvantages of DBMS over file processing system.
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Draw and explain the architecture of DBMS.
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Differentiate between network model and relational model.
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Why is relational model more popular over other models of DBMS?
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What is 'logical schema?
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Explain how concurrency is handled by DBMS?
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Explain the types of attributes represented in ER model. How are the entity Sets different from relationship sets?
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Construct an ER diagram for hospital management system. By choosing your own entity and relationship sets. .
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Reduce down the above ER model into the table structure.
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Consider the employee database. Emp (empno, ename, job, salary,hiredate, deptno)
Dept (deptno, dname, location Give an expression in SCL for the following queries:
Display the empno and dname of the employee named "Anit'.
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Consider the employee database. Emp (empno, ename, job, salary,hiredate, deptno)
Dept (deptno, dname, location Give an expression in SCL for the following queries:
Display the total salary of each deptno encluding, the employees who are 'clerk'.
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Consider the employee database. Emp (empno, ename, job, salary,hiredate, deptno)
Dept (deptno, dname, location Give an expression in SCL for the following queries:
Give 20 percent salary hike to all the employees, work in deptno 30.
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Consider the employee database. Emp (empno, ename, job, salary,hiredate, deptno)
Dept (deptno, dname, location Give an expression in SCL for the following queries:
Create the table Emp.
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Consider the employee database. Emp (empno, ename, job, salary,hiredate, deptno)
Dept (deptno, dname, location Give an expression in SCL for the following queries:
Insert the details of new employee in the Emp table.
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Consider the employee database. Emp (empno, ename, job, salary,hiredate, deptno)
Dept (deptno, dname, location Give an expression in SCL for the following queries:
Display the name of the employee who is having maximum Salary.
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List and explain the Codd's rules of DBMS.
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What is referential integrity constraint? Explain.
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How are the views created? Explain by giving the syntax.
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Differance between Functional dependencies and fully functional dependencies?
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discuss the Differance between 3 NF and 2NF.
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Discuss the Differance between 2 NF and INF
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Discuss the Differance between Data definition language and Data manipulation language.
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Discuss the Differance between Normalization and Denormalization.
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Explain by giving suitable examples, the working of set operators ie. Union, Intersect, and Except.
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What are the uses of forms in MSAccess? How are they created?
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How are the aggegate operators deals with null values?
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Breifly define entity
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Briefly define super key and primary key.
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briefly define normalization.
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Briefly define tuples and attribute
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Briefly define mail merge
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Briefly define SQL
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Briefly define UNION and INTERSECTION.
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Differentiate between loss less and lossy decomposition with example.
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Give five examples statements of each DDL and DML.
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Explain primary key, secondary key candidate key and forign key in brief.
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Draw ER diagram corresponding to customers and Loan. Explain the various shapes and lines used in ER Model.
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Define the following anomalies
(a) Update anomaly
(b) Insertion anomaly
(c) Deletion anomaly
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Explain the purpose of the database system.
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Explain different Database users.
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List three reasons why null values might be introduced to the database.
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Mention the fundamentals operations of relational DBMS and their symbol.
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Write short notes on Creating Report using Report Wizard
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Write short notes on Access object understanding
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Write short note on Codd rules
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We have following relations:
Supplier(S=, sname, status, city)
Parts(P#, pname, color, weight, city)
SPISA, P#, quantity
Answer the following queries in SQL:
Find the supplier for city  Delhi'.
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We have following relations:
Supplier(S=, sname, status, city)
Parts(P#, pname, color, weight, city)
SPISA, P#, quantity
Answer the following queries in SQL:
Find suppliers whose name start with 'AB
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We have following relations:
Supplier(S=, sname, status, city)
Parts(P#, pname, color, weight, city)
SPISA, P#, quantity
Answer the following queries in SQL:
Find all suppliers whose status is 10, 20 or 30.
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We have following relations:
Supplier(S=, sname, status, city)
Parts(P#, pname, color, weight, city)
SPISA, P#, quantity
Answer the following queries in SQL:
Find total number of city of all suppliers.
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We have following relations:
Supplier(S=, sname, status, city)
Parts(P#, pname, color, weight, city)
SPISA, P#, quantity
Answer the following queries in SQL:
Find the name of suppliers who supplies quantity of the item P1 more than 50.
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What does defining, manipulating and sharing of a database mean?
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Discuss the main characteristics of the database approach and how it differs from traditional file systems.
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Describe the three  schema architecture. What is the difference between logical and physical data Independence?
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Differentiate the following: I) Entity and Attribute
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Differentiate the following: ii) Entity type and Entry set
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Differentiate the following: iii) Strong and weak Entity
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Differentiate the following: iv) Recursive relationship and Identifying relationships
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A database is being constructed to keep track of the teams and games of a sports league. A team has a number of players, not all of whom participate in each game. It is desired to keep
track of the players participating in each game for each team, the positions they played in
that game and the result of the game. Design an ER diagram for this application, stating any
assumptions you make. Choose your favorite sport (e.g Cricket Base ball, Football).
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Explain the entity integrity and referential integrity constraints. Why each is considered important?
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Briefly discuss the different types of update operations on a relation.
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Consider the following relational schema. Emp (eid, ename, age, sal)
Works_foreid, pid, #hrs)
Proj (pid, pname)
Write the Queries in Relational algebra for the following:
i) Retrieve Employee Id and Name of the employees who work for all the projects.
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Consider the following relational schema. Emp (eid, ename, age, sal)
Works_foreid, pid, #hrs)
Proj (pid, pname)
Write the Queries in Relational algebra for the following:
ii). Retrieve Name and Age of employees whose salary > 10000.
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Consider the following relational schema. Emp (eid, ename, age, sal)
Works_foreid, pid, #hrs)
Proj (pid, pname)
Write the Queries in Relational algebra for the following:
iii) For each employee, get the number of projects and number of hours worked on projects.
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Consider the following relational schema. Emp (eid, ename, age, sal)
Works_foreid, pid, #hrs)
Proj (pid, pname)
Write the Queries in Relational algebra for the following: iv) Retrieve Names of employees working on "CSE" project.
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Give the complete syntax of SELECT statement in SQL and discuss all the clauses with examples.
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What are Aggregate functions in SQL? Explain with examples.
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Consider the following Relational schema: Lives (Name, Street, City)
Works (Name, Cname, Salary)
Located (Cname, City)
Manager (Name, MGR_Name)
Write the Queries in SQL for the following:
i) Find the people who earn more than every employee of "Canara Bank".
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Consider the following Relational schema: Lives (Name, Street, City)
Works (Name, Cname, Salary)
Located (Cname, City)
Manager (Name, MGR_Name)
Write the Queries in SQL for the following:
ii) Find the Name and city of all the people who work for "SBI" and earn more than 35000 rupees.
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Consider the following Relational schema: Lives (Name, Street, City)
Works (Name, Cname, Salary)
Located (Cname, City)
Manager (Name, MGR_Name)
Write the Queries in SQL for the following:
iii) Find the company employing the most people.
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Consider the following Relational schema: Lives (Name, Street, City)
Works (Name, Cname, Salary)
Located (Cname, City)
Manager (Name, MGR_Name)
Write the Queries in SQL for the following:
iv) Show 20% raise in salary of all managers.
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Consider the following Relational schema: Lives (Name, Street, City)
Works (Name, Cname, Salary)
Located (Cname, City)
Manager (Name, MGR_Name)
Write the Queries in SQL for the following:
v) Find the companies located in every city in which ICICI" is located.
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Explain Insert, Delete and Update statements in SQL with examples.
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What are views in SQL? Show how views are specified in SQL. List the advantages of views.
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Differentiate : i) Trigger and Assertion
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Differentiate : ii) Embedded and Dynamic SQL
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Differentiate : iii) Outer join and Self Join
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Differentiate : iv) Super key and Candidate key
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What are the informal guidelines for relation schemas? Explan.
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Define INF, 2NF and 3NF with examples.
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What is BCNF? How it is different from 3NF? Prove that a relation with two attributes is always in BCNF
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What do you mean by MVD? When does it arise? Define 4NF.
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Define Join Dependency and 5NF.
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Let R = {SSN, Ename, Pnumber, Prame. Plocn, Hrs) and D = {R_{1}, R_{2}. R_{3}, where
R_{1} = Emp = {SSN, Ename)
R_{2} = Proj= {Pnumber, Pnamie, Ploch)
R_{3} = Work_ON = (SSN, Pnumber, Hrs)
The following functional dependencies hold on relation R.
F = (SSN Ename;
Pnumber {Pname, Plocn);
(SSN, Pnumber) Hrs).
Prove that above decomposition of relation 'R' has the lossless join property.
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What are the problems with concurrency? Explain each with an example.
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With a neat state transition diagram, discuss the different states of a transaction.
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Wine and explain the Twophase locking protocol for concurrency control.
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Define the following (Give example where necessary): (a) Multivalued dependency
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Define the following (Give example where necessary): (b) Dependency preservation
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Define the following (Give example where necessary): c) Functional dependency
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Define the following (Give example where necessary): (d) Referential integrity
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Define the following (Give example where necessary): (e) Internal schema
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Define the following (Give example where necessary): (f) Candidate key
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Define the following (Give example where necessary): (g) Triggers
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Define the following (Give example where necessary): (h) DBA
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Define the following (Give example where necessary): (i) Weak entity
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Define the following (Give example where necessary): (j) Foreign key
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(a) Differentiate between the term Generalization and Specialization with example.
This question has 0 answers so far.


(b) Differentiate between Fragmentation. Replication and Transparency.
This question has 0 answers so far.


(a) Define closure of FD set. For the following relation R (A, B, C, D)
With FDs as follows: (i) Find the closure of (B, D) and (CA).
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(b) What is canonical cover? How it is computed?
This question has 0 answers so far.


(a) Explain the "ACID" properties in brief.
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(b) What do you mean by serializability. Discuss the conflict serializability and view serializability with examples.
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(a) Draw and explain a neat diagram of three level architecture of database system.
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(b) Construct an ER diagram for 'Hospital management system. There would be a set of patients and set of doctors. For each patient, there would be a log of various tests and
examinations conducted. Make assumptions if necessary and clearly state them.
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(a) How the B+ tree index files are maintained? Explain.
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(b) Explain the method of "query processing" in brief.
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(a) Discuss clearly inner join, outer join and theta join with example.
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(b) For the relation R=(A, B, C) and S=(D, E, F) and relation (R) and s(s), give SQL statement for following expressions and explain. (i) (ii) (iii) (iv)
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Attempt the following (a) How the deadlock is detected in transactions? Explain its recovery process also.
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Attempt the following (b) Normalize the following relation to as much as possible citing the reasons and anamoloies. R (empno, name, street, city, company name, companycity, managername, age, salary, maritalstatus, spousename)
This question has 0 answers so far.


Attempt the following (c) State the mulitversion time stamp based protocol. Suggests a scheme to avoid the phantom phenomenon.
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a) Discuss the main characteristics of the database approach and how it litters from file systems.
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b) Design an ER schema for keeping track of information about votes taken in the U.S. House of Representatives during the current twoyear congressional session. The database seeds to
keep track of each U.S. STATE's Name (e.B, Texas, New York, California) and includes the
Region of the state (whose domain is (Northeast, Midwest, Southeast, Southwest, West)
Each CONGRESSPERSON in the House of Representatives is described by their Name, and
includes the District represented, the StartDate when they were first elected, and the political
Party they belong to (whose domain is (Republicar, Democrat, Independent, Other). The
database keep track of each BILL (ie, proposed law), and includes the BillName, the
DateOf Vote on the bill, whether the bill PassedOtFailed (whose domain is YES, NO}), and
the Sponsor (the congressperson(s) who sponsoredi.e., proposed the bill). The database
keeps track of how each congressperson voted on each bill (domain of vote attribute is (Yes.
No, Abstain, Absent)). Draw an ER schema diagrams for the above application State clearly
• any assumptions you make.
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a) What are the responsibilities of the DBA and the database designers?
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b) Consider the following set of requirements for a university database that is used to Keep track of students transcripts.
• The university keep track of cach student's name, student number, social security
number, current address and phone, permanent address and phone, birthdate, sex, class
(freshuman, sophomore, ... graduate), major department, minor department (if any).
and degree program (B.A., B.S.,..,Ph.D.). Some user applications need to refer to
the city, state, and zip code of the student's permanent address and to the student's last name. Both social security number and student number have unique values for each student • Each department is described by & name, department code, office number, office
phone, and college. Both name and code have unique values for each department
•Each course has & course name, description, course number, number of semester
hours, level, and offering department. The value of course number is unique for each
course
•Each section has an instructor, semester, year, course, and section number. The section
number distinguishes sections of the same course that are taught during the same
semester/year, its values are 1, 2, 3,..up to the number of sections taught during
each semester. •A grade report has a student, section, letter grade, and numeric grade (0, 1, 2, 3, or 4).
Design an ER scheme for this application, and draw an ER diagram for that schema
Specify key attributes of each entity type and structural constraints on each relationship
type. Note any unspecified requirements, and make appropriate assumptions to make the
specification complete.
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a) How can the key and foreign key constraints be enforced by the DBMS is the enforcement technique you suggest difficult to implement? Can the constraint checks be executed efficiently when updates are applied
to the database?
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b) What is a view in SQL and how is a defed? Discuss the problems that may arise when one attemps to update a view. How a view typically implemented?
This question has 0 answers so far.


c) How does SOL allow implementation of the entity integrity and referential in egrley constraints? What about general integrity constraints?
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a) What is join dependencies? Explain with the help of example.
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b) What are the types of anomalies? How these anomalies can remove explain with the help of example.
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b) Explain Bindex files with the help of examples
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a) Since every conflictserializable schedule is view serializable, why do we emphasize conflict serializability rather than view serializability?
This question has 0 answers so far.


b) Show that the twophase looking protocol ensures conflict serializability, and that transactions can be serialized according to their lock points
This question has 0 answers so far.


a) List the physical storage media available on the computers you use routinely. Give the speed
with which data can be accessed on each medium
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Consider the following two transactions: Add lock and unlock Instructions to transactions The and 132. so that they observe the twophase locking protocol. Can the execution of these transactions result in a deadlock?
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a) What is a view? How it is related to data independence?
This question has 0 answers so far.


b) What is a Relation Schema and a Relation?
This question has 0 answers so far.


c) What is Functional Dependency?
This question has 0 answers so far.


d) Define Join and enlist its types
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c) What is database Trigger?
This question has 0 answers so far.


f) Compare Nonclustered and clustered index
This question has 0 answers so far.


g) Define correlated subqueries".
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h) What is Fully Functional dependency?
This question has 0 answers so far.


i) What do you mean by Correlated subquery?
This question has 0 answers so far.


j) What is cursors give different types of cursors?
This question has 0 answers so far.


Consider the following six relations for an order pressing database application in a company CUSTOMER(Cust, Crame, City)
ORDER(Ordert, Odate, Cust, Ord Amt)
ORDER_ITEM(Ordery, Item, Quy)
ITEM(Item# Unit_price)
SHIPMENT(Ordert, Warehouse, Ship_date)
WAREHOUSE(Warehouse, City)
Here, Ord. Amt refers to total dollar amount of an order; Odate is the date the order was placed
Ship date is the date an order is shipped from the warehouse. As me that an order can be
shipped from several warehouses. Specify the foreign keys for the above schema, stating any
Assumptions you make. Then specify the following queries in relational algebra
# List the Order and Ship date for all orders shipped from Warehouse number 'W2" a) What is cursors give different types of cursors?
This question has 0 answers so far.


Consider the following six relations for an order pressing database application in a company CUSTOMER(Cust, Crame, City)
ORDER(Ordert, Odate, Cust, Ord Amt)
ORDER_ITEM(Ordery, Item, Quy)
ITEM(Item# Unit_price)
SHIPMENT(Ordert, Warehouse, Ship_date)
WAREHOUSE(Warehouse, City)
Here, Ord. Amt refers to total dollar amount of an order; Odate is the date the order was placed
Ship date is the date an order is shipped from the warehouse. As me that an order can be
shipped from several warehouses. Specify the foreign keys for the above schema, stating any
Assumptions you make. Then specify the following queries in relational algebra
# List the Order and Ship date for all orders shipped from Warehouse number 'W2" b) List the Warehouse information from which the Customer named 'Jose Lopez' was supplied his orders. Produce a listing Order Warehouse.
This question has 0 answers so far.


Consider the following six relations for an order pressing database application in a company CUSTOMER(Cust, Crame, City)
ORDER(Ordert, Odate, Cust, Ord Amt)
ORDER_ITEM(Ordery, Item, Quy)
ITEM(Item# Unit_price)
SHIPMENT(Ordert, Warehouse, Ship_date)
WAREHOUSE(Warehouse, City)
Here, Ord. Amt refers to total dollar amount of an order; Odate is the date the order was placed
Ship date is the date an order is shipped from the warehouse. As me that an order can be
shipped from several warehouses. Specify the foreign keys for the above schema, stating any
Assumptions you make. Then specify the following queries in relational algebra
# List the Order and Ship date for all orders shipped from Warehouse number 'W2" c) Produce a listing: CUSTNAME, #OFORDERS, AVG ORDER AMT, where the middlecolumn is the total number of orders by the customer and the last column is the average order amount for that customer.
This question has 0 answers so far.


Consider the following six relations for an order pressing database application in a company CUSTOMER(Cust, Crame, City)
ORDER(Ordert, Odate, Cust, Ord Amt)
ORDER_ITEM(Ordery, Item, Quy)
ITEM(Item# Unit_price)
SHIPMENT(Ordert, Warehouse, Ship_date)
WAREHOUSE(Warehouse, City)
Here, Ord. Amt refers to total dollar amount of an order; Odate is the date the order was placed
Ship date is the date an order is shipped from the warehouse. As me that an order can be
shipped from several warehouses. Specify the foreign keys for the above schema, stating any
Assumptions you make. Then specify the following queries in relational algebra
# List the Order and Ship date for all orders shipped from Warehouse number 'W2" c) List the orders that were not shipped within 30 days of ordering.
This question has 0 answers so far.


Consider the following six relations for an order pressing database application in a company CUSTOMER(Cust, Crame, City)
ORDER(Ordert, Odate, Cust, Ord Amt)
ORDER_ITEM(Ordery, Item, Quy)
ITEM(Item# Unit_price)
SHIPMENT(Ordert, Warehouse, Ship_date)
WAREHOUSE(Warehouse, City)
Here, Ord. Amt refers to total dollar amount of an order; Odate is the date the order was placed
Ship date is the date an order is shipped from the warehouse. As me that an order can be
shipped from several warehouses. Specify the foreign keys for the above schema, stating any
Assumptions you make. Then specify the following queries in relational algebra
# List the Order and Ship date for all orders shipped from Warehouse number 'W2" c) List the Order# for orders that were shipped from all warehouses that the company has in New York.
This question has 0 answers so far.


a) Suppose you are given a relation (table) R=(A,B,C,D,E) with the functional dependencies:
1. Find all candidata keys
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a) Suppose you are given a relation (table) R=(A,B,C,D,E) with the functional dependencies: 2.Identify the highest normal form that satisfies
This question has 0 answers so far.


a) Suppose you are given a relation (table) R=(A,B,C,D,E) with the functional dependencies: 3 If is not in Boyce Codd Normal Form (CNF), then decompose the relation into additional relations until all relations are in BCNF.
This question has 0 answers so far.


a) Explain the CODD's rules of RDBMS.
This question has 1 answers so far.


b) Discuss the timestamp ordering techniques for concurrency control.
This question has 1 answers so far.


a) Discuss the different types of transaction failures that may occur in database environment,
This question has 1 answers so far.


b) What is checkpoint? Explain the different recovery techniques when database crashes.
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Answer the following: Draw and explain the architecture of DBMS. Compare it with file system.
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Answer the following: b) Explain the role of ER model in database design.
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Answer the following: c) How can the two tables be joined using left outer and right outer joins?
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Answer the following: d) What problems are encountered if data is not stored in normalized table?
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Answer the following: e) List the problems associated with two phase locking protocol.
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Consider the following relational schema: Emp (cmpno, ename, job, sal, comm., hiredate, deptno)
Dept (deptno, dname, location)
Give an expression in SQL for the following Queries:
b) Increase the salary by Rs 1500 for the employees who are "CLERK.
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Consider the following relational schema: Emp (cmpno, ename, job, sal, comm., hiredate, deptno)
Dept (deptno, dname, location)
Give an expression in SQL for the following Queries:
c) Display the details of employees who work in same deptno as of the employee 'SMITH'.
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Consider the following relational schema: Emp (cmpno, ename, job, sal, comm., hiredate, deptno)
Dept (deptno, dname, location)
Give an expression in SQL for the following Queries:
e) Display total salary of employees of each deptno and display those deptno whose total salary is more than Rs. 30000.
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Differentiate between: a) Primary key and Foreign Key
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Differentiate between: b) View and Indexes
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Differentiate between: c) Serializable and non serializable transactions
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Differentiate between: d) 2NF and 3CNF
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Differentiate between: e) Data and Metadata
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a) Construct an ER diagram for a hospital management system with a set of doctors and a set of patients. With each patient, a series of various tests
and examinations are conducted. On the basis of preliminary report
patients are admitted to a particular specialty ward.
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a) Explain the differences among extenal, internal and conceptual schemas.
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Related with database, explain the term: i) Data integrity
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Related with database, explain the term: ii) Concurrency
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Related with database, explain the term: iii) Data independence
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Related with database, explain the term: iv) Referential integrity
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