select * from (select xm,je from table) a , (select xm01,je01 from table) bwhere a.xm = b.xm01and a. ...
select A. from tb mend enrol A, select A.Typeid, A.address from tb mend enrol A group by A.Typeid, A.address having count A.Typeid gt and count A.address gt B where A.Typeid B.Typeid and A.address B. ...
2019-11-26 16:45 0 1637 推荐指数:
select * from (select xm,je from table) a , (select xm01,je01 from table) bwhere a.xm = b.xm01and a. ...
select * from user_activity group by user_id,activity_id having count(*) > 1 select * from wh ...
https://zhidao.baidu.com/question/243124782.html 展开全部 select * from A inn ...
看起来有点绕口吧,举个例子吧,如图 两张表,字段名也不同字段gs 和另一张表 gsmc 的有些值是相同的 我们要做的就是把这个相同的值找出来 会写这个sql语句就可以 只写重点 这样就可以成功的输出来了 如果像我这样有登录的用户不同,比如这样 维护人都是登陆 ...
今天分享一个如何把name和model的值一起显示 name的值是(棉线,网布,蕾丝等) model的值是(A21-4321,12343,B123a等) 1 select concat(Name,Model)as ss from jsh_material 运行结果: ...
https://blog.csdn.net/wqzbxh/article/details/84649485 SELECT concat(host,uri),ua FROM httpdataco WHE ...