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性能优化(1)MySQL查询脚本优化 | Husy #14

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@husying

https://husycode.cn/2020/01/10/xing-neng-you-hua-1-mysql-cha-xun-jiao-ben-you-hua/

SQL 的执行顺序要想优化MySQL的查询语句,必须先了解查询 SQL 的执行顺序
一个完整的Query SQL,如下:
select distinct
<select_list>
from
<left_tab

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