select uid from T_TABLE Where num='3' and time between like '200701%' and like '200702%' 我这条语句有错,请各位写出正确查询本意是查uid,条件是 num=3 和 时间time 在2007年1月 到 2007年2月 之间between和like是不是不

MYSQL如何把两个结构相同的表组成一个表查询select * from (select uid,count(*) as sc from `bbs_topics` group by uid) as a,(select uid,count(*) as sc from `bbs_reply` group by uid) as b where a.uid=b.uid我向要取得两个表的数量 这句话我还是看不懂,select count(1) from T_Late where T_Late.Uid = T_Worker.Uid and datediff(m,latetime,Getdate()) = 1 select uid from T_TABLE Where num='3' and time between like '200701%' and like '200702%' 我这条语句有错,请各位写出正确查询本意是查uid,条件是 num=3 和 时间time 在2007年1月 到 2007年2月 之间between和like是不是不 select * from book limit , select * from a union select * from b 能详细说下么 select from 表 和select from [表]有什么不同? select count(*) from 怎么使用 select count(1) from emp select * into dept2 from dept 在安装X-Space 系统后 进行测试的时候出现如下错误信息SQL:SELECT t.tid,t.author,t.subject,t.fid,t.views,t.replies,t.dateline,t.lastpost FROM `discuz`.`[Table]mythreads` m,`discuz`.`[Table]threads` t WHERE m.uid='1' AND m.tid=t.tid A 1' union select * from [ADM] union select * 请问 select top 1 1 from ... // IF EXISTS (SELECT name FROM m select * into b from a where 11 SQL 语句 SELECT * FROM {{table}} WHERE `fleet_end_time` SELECT ms sql :select * from (select *from b) as xxx where 和 select * from (select *from b) xxx where区select * from (select *from b) as xxx where…… 和 select * from (select *from b) xxx where……的区别别告诉我是一样的.因为我有一 select max(account_id ) from(select top 5 account_id from account)子查询没起作用为什么?