Managing databases, Database Management System

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Code an Oracle Database trigger to enforce the constraint that an employee can
never change his or her department.

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Client dbms, i need to submit in this topic.

i need to submit in this topic.

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Benefits of heap files 1.   This is a easy file Organisation method. 2.   Insertion is somehow capable. 3.   Good for bulk-loading data into a table. 4.   Best if file

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4, explain the level architectures of the database management system

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What do you mean by Correlated subquery? Subqueries, or nested queries, are used to bring back a set of rows to be used by the parent query. Depending on how the subquery is writ

Whta is the advantage of the database management approach, Whta is the adva...

Whta is the advantage of the database management approach? The advantage of the database management approach is data is integrated and can be accessed by multiple programs.

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