日期:2014-05-17 浏览次数:20887 次
sys@ORCL> ed
Wrote file afiedt.buf
1 with
2 t as (
3 select '1' "等级代码",'高' "等级" from dual union all
4 select '2','中' from dual union all
5 select '3','低' from dual
6 )
7* select * from t
sys@ORCL> /
等级代码 等级
-------------------- --------------------
1 高
2 中
3 低