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es查询语句 sql语句查询语法?

浏览量:2828 时间:2021-03-14 02:25:45 作者:admin

sql语句查询语法?

1:select s#,sn from s,c,sc where s.s#=sc.s# and c.c#=sc.c# and c.cn="税收基础"2:select sn,sd from s,c,sc where s.s#=sc.s# and c.c#=sc.c# and c.c#="C2"3:select sn,sd from s,c,sc where s.s#=sc.s# and c.c#=sc.c# and c.c#!="C5"4:select * from (select sn,sd,count(s.*) as cc from s,c,sc where s.s#=sc.s# and c.c#=sc.c# and s.s# group by sn,sd) as tt where tt.cc=(select count(*) from c)5: select count(tt.*) from (select s#,sn from s,c,sc where s.s#=sc.s# and c.c#=sc.c# group by s#,sn) as tt6:select * from (select sn,sd,count(s.*) as cc from s,c,sc where s.s#=sc.s# and c.c#=sc.c# and s.s# group by sn,sd) as tt where tt.cc>=5) 刚写的,希望能帮到你。

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