Database Management Systems Mcqs
Page No. 8
The problem of ordering the update in multiple updates is avoided using
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_________ are useful in SQL update statements, where they can be used in the set clause.
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Which one of the following deletes all the entries but keeps the structure of the relation.
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Delete from r where P;
The above command
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A Delete command operates on ______ relation.
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In SQL the statement select * from R, S is equivalent to
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The operation which is not considered a basic operation of relational algebra is
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How many tables may be included with a join?
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