摘要: select t1.id from table1 t1 where tbl1.id not in (select t2.id from table2 t2); t1有9万条数据,t2有3万条数据 使用not exists 代替 not in select t1.id from table1 t1 w 阅读全文
posted @ 2020-10-27 08:55 它的眼角开过光 阅读(604) 评论(0) 推荐(0) 编辑