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Mysql Query Optimization

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  1. To check how MySQL would execute a SELECT query, which statement is used?
    1. DISPLAY
    2. EXPLAIN
    3. SHOW
    4. TELL
    5. None of these
Correct Option: B

In MySQL, by issuing an EXPLAIN statement MySQL displays some information about how it would execute a SELECT query without actually executing it. It is prefixed with the query.


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