数据库SQL2000
以下两条语句,如何合并成一条:
- SQL code
select qid,count(qid) as cis from test group by qid
- SQL code
select * from test as t1 where exists(select * from test as t2 where t1.QID=t2.ID) and t1.TID="&TID&"
请大家帮帮忙
------解决方案--------------------
- SQL code
select *,(select count(*) from test where qid=t1.qid)from test as t1 where exists(select * from test as t2 where t1.QID=t2.ID) and t1.TID="&TID&"
------解决方案--------------------
貌似LZ的那两条select语句没有什么关联,为何要合并呢?
------解决方案--------------------
- SQL code
select qid,count(qid) as cis from (select * from test as t1 where exists(select * from test as t2 where t1.QID=t2.ID) and t1.TID="&TID&") z group by qid
------解决方案--------------------
- SQL code
select *, (select count(*) from test where qid=t1.qid) from test as t1 where exists (select * from test as t2 where t1.QID=t2.ID) and t1.TID="&TID&"