SQL SERVER 中的top语句使用oracle如何写?
Talbe TA
id name job
Table TB
id job num
SQL SERVER语法:
select *,(select top 1 num from TB where job=TA.job) from TA
求教如何转为oracle 语句
------解决方案--------------------
select id, name, job from TA where id in
(select id from (select id from TB order by num desc) where rownum=1);
------解决方案--------------------
Talbe TA
id name job
Table TB
id job num
select [列名,列名],(select num from TB where job=TA.job and rownum <2) from TA
用 rownum 不是那样回报错要写成
select a,b,c,d,(select 列 from 表)
------解决方案--------------------select id, name, job from TA where job in
(select job from TB) where rownum<2;
------解决方案--------------------Key Words---RowNum
------解决方案--------------------
SQL code
select t1.*,t2.num
from TA t1,
(select job,num from TB a where a.rowid = (select max(b.rowid) from TB b where b.job=a.job)) t2
where t1.job=t2.job