摘要: 原SQLselect * from A aleft join B b on a.id=b.id 优化SQLselect * from (select aa,bb from A where aa='') aleft join (select aa,bb from B where aa='') b on 阅读全文
posted @ 2024-01-17 16:13 妖狐鬼魅 阅读(16) 评论(0) 推荐(0) 编辑