Question: Explain the measures of query cost, selection operation and join. OR Explain the measures of finding out the cost of a query in query processing.

Explain the measures of query cost, selection operation and join. OR

Explain the measures of finding out the cost of a query in query processing.

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Measures of query cost The cost of query evaluation can be measured in terms of a number of different resources including disk access CPU time to execute a query and in a distributed or parallel datab... View full answer

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