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复制代码 代码以下:
select * from _test a left join _test b on a.id=b.id where a.level="20" and a.month="04" and b.level="20" and b.month="03"; select * from
阅读背景：
MySQL左联多表查询where条件写法示例
来源：互联网
select * from _test a left join _test b on a.id=b.id where a.level="20" and a.month="04" and b.level="20" and b.month="03"; select * from
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