Oracle 字段拼接
时间:2022-03-14 03:46
1.纵向拼接:
select ‘a‘ a from dual union select ‘b‘ b from dual
2.横向拼接:
select ‘a‘ a, ‘b‘ b from dual
时间:2022-03-14 03:46
1.纵向拼接:
select ‘a‘ a from dual union select ‘b‘ b from dual
2.横向拼接:
select ‘a‘ a, ‘b‘ b from dual