Oracle rownum范围

Question

如何在rowum范围内从oracle数据库返回数据，这不起作用

select *from(
select * from t where  date>=sysdate-1 order by date desc
) where ROWNUM>=20 and ROWNUM<=40

Answer 1

在Oracle 12C +中，您可以使用BigNumber / offset：

fetch

Answer 2

rownum被设置为从查询中输出行，因此您需要将其包括在内联视图中并在视图外应用过滤器：-

select * from (
select *, rownum as r from t where  date>=sysdate-1 order by date desc
) where r>=20 and r<=40