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What is an Operand? The data on which the operation is to be performed is known as an Operand
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
domain
Describe the GRANT function and explain, how it associates to security. What kind of privileges may be granted? How are they revoked? Ans: Since more than one user can aacce
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
please give me introduction to full data in D B M S in a short assignment
What are the disadvantages of relational approach? Disadvantages of relational approach: • Substantial hardware and system software overhead • May not fit all business models •
Breaking into Subsystems Decomposition is a significant technique for coping with complexity based on idea of divide and conquers. In dividing a problem into sub problems, the
Self-Join: In a self join a table is joined with itself. Let consider the following sample partial data of EMP table EMPNO ENAME MGRID
Security: Data not needed by local applications is not stored at the site, therefore no unnecessary security violations may exist. But how can we carry out fragmentation? Fragm
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