mysql version:5.6.29
默认这边是关闭的
show variables like "%query%"; 查询慢查询日志是否开启
![](https://img.haomeiwen.com/i6547072/df083eb94e1a562c.png)
set global slow_query_log=on; 开启慢查询日志
![](https://img.haomeiwen.com/i6547072/dcfb9f7ab99848af.png)
set global long_query_time=3;
![](https://img.haomeiwen.com/i6547072/455b40d0f9eeea92.png)
mysql version:5.6.29
show variables like "%query%"; 查询慢查询日志是否开启
set global slow_query_log=on; 开启慢查询日志
set global long_query_time=3;
本文标题:mysql慢查询日志
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