To delete a particular column in a relation which command, Database Management System

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To delete a particular column in a relation which command is used ?

To delete a particular column in a relation ALTER command is used.

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In an e-r diagram an entity set is represent by, In an E-R diagram an entit...

In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.

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Give expression in both tuple calculus and domain calculus, Consider the fo...

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What is substitutability? Any method of a class-say A can equally well be adjured with any object belonging to any subclasses B of A. This characteristic leads to code reuse, a

MYSQL, i have a homework assignment identical to one you have listed

i have a homework assignment identical to one you have listed

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This project requires you to create a database design. Your design will be documented in a set of Entity-Relationship diagrams. Draw a set of Entity-Relationship diagrams to mode

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Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas

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Write a short note on built in function in QBE? Built in function in QBE: QBE involves various built in functions like AVG, MAX,MIN,SUM and CNT. We must prefix these operator

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