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What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
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Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
Why are cursors necessary in embedded SQL? A cursor is an object used to store the output of a query for row-by-row processing through the application programs. SQL statements
Distributed Database Management System
Process to find the non-concurrent objects Once we find out non-concurrent (mutually exclusive) objects, we can fold all objects together in one thread of process or control. O
Desirable Properties Of Decomposition Decomposition is a process of dividing a relation into its projections that will not be disjoint. Please remind the Relational projection
Define what Immediate database modification technique uses? Ans: Both undo and redo.
Let consider the given partial relation EMP. Let us make some sub-queries for them EMPNO ENAME JOB SAL DEPTNO 7566
We face problem of stock Opening balance and closing balance in Minus
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