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Define Database layer? The database layer defines the data formats used in the database.
Write the motivations led to development of OO-DBMS? 1. Programmer frustration with RDBMSs. 2. Requirement for special features.
What exactly is the concept of Functional Dependencies? And how do we associate this concept with the logic of Super-keys, Candidate Keys, etc? Given Relation R(A,B,C,D,E) with de
Benefits of using heuristics
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
What is the difference between SQL Server 2000 clustered and nonclustered indexes? With a clustered index, the data are kept in the bottom level of the index and in the similar
basic structure of xml
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
average response time?
Explain the benefit of OOM. Main benefits of object oriented modeling are development of system become fast, quality of the system get improve. It gives freedom of use of alrea
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