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Database Management System

Answer: A

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2.

A relation is in attribute of other composite key. if an attribute of a composite key is dependent on an

Answer: B

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3.

As per equivalence rules for query transformation, selection operation distributes over

Answer: D

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Answer: C

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5.

DROP is a statement in SQL.

Answer: C

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6.

For correct behaviour during recovery, undo and redo operation must be

Answer: C

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7.

Key to represent relationship between tables is called

Answer: C

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8.

The values of the attribute describes a particular

Answer: C

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9.

The clause in SQL that specifies that the query result should be sorted in ascending or descending order based on the values of one or more columns is

Answer: B

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10.

______contains information that defines valid values that are stored in a column or data type.
 

Answer: B

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