Datamanagement, Database Management System

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Explain weak and strong entity type ? Weak and Strong entity type: An entity set which does not have a primary key is referred to as a weak entity set. The existence of a wea

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What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.

Find names of employees, Consider the relations EMP(ENO,ENAME,AGE,BASIC_S...

Consider the relations EMP(ENO,ENAME,AGE,BASIC_SALARY) WORK_IN(ENO,DNO) DEPT(DNO,DNAME,CITY) Express the following queries in SQL (i) Find names of employees who work in a dep

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A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.

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Explain the main advantages of DBMS over File Oriented System ?

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