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MySQL Scheduling and Locking Issues

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  1. The number of tables among the following for which HIGH_PRIORITY have an effect are _________________.
    MyISAM, MEMORY, MERGE
    1. 3
    2. 2
    3. 1
    4. 0
    5. None of these
Correct Option: A

In MySQL, the LOW_PRIORITY and HIGH_PRIORITY modifiers have an effect only for those storage engines that use table locks. The storage engines MyISAM, MERGE and MEMORY use table locks.


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