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Question 1 Discuss about second normal form and third normal form
Question 2 Write short note on 1) Data Manipulation Language 2) Data Definition Language
Question 3 Define the following terms 2) Entity 2) Keys
Question 4 Write down the characteristics of different types of storage devices. List (Cache, Main memory, Flash memory, Magnetic-disk storage, Optical storage, Tape storage)
Question 5 Differentiate between 1) Relational Data Model 2) Hierarchical Model
Question 6 What is Normalization? Explain different types of normal form
What are stored-procedures? And what are the advantages of using them? Stored procedures are database objects that perform a user defined operation. A stored procedure can have
Deadlock And Its Prevention: As seen earlier, though two phase locking protocol handles the trouble of serialisability, but it causes some troubles also. For instance, consider th
What are data models? Explain it detail? Entity relationship model Rectangles Ellipse Diamonds Lines Relational model Relational model use a collection
Consider the following database schema: STAFF(StaffNo, fName, lName, Position, sex, dob, branchNo) BRANCH(BranchNo, Street, City) Assume the following for the above database
Describe Physical Data independence ? Physical Data Independence - It is capacity to modify the internal schema without having to change conceptual schema. Therefore, the exter
Define Query by Example QBE is a query language relies upon domain calculus and has two dimensional syntax. The queries are written in the horizontal and vertical dimensions of
What is Specialization? Specialization: Specialization permits you to describe new types of information (new structural types or latest domains of information), although reusin
What are the advantages and disadvantages of merging an association into a class? Advantages: i) Less number of tables ii) Faster performance due to the fewer tables
under what condition log based recovery is feasible?
What is a heterogeneous distributed database? In a heterogeneous distributed database, dissimilar sites may use different schemas, and dissimilar dbms s/w. The sites may not be
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