ORACKLE一个表中有a,b,c,d;4个字段,我想把这4个字段值转到新得一列,SQL怎么写,

例如: 转成
2024-11-30 10:59:37
推荐回答(1个)
回答1:

select dba as reason from biao
union all
select loan from biao
union all
select mortdue from biao
union all
select value from biao