SQL performance analysis - execution frequency, slow query log, profile details

Language 2023-07-23 03:37:20 views: null

1. SQL execution frequency

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2. Slow query log

show variables like 'slow_query_log';

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After the modification is completed, after querying again, it is found that the switch of slow_query_log is on.
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3. Profile details

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Origin blog.csdn.net/weixin_44860226/article/details/131777558
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