oracle提取表一个 表3-5行，用两种sql语句实现，其中一种用minus
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解决时间 2021-03-25 12:08
- 提问者网友：练爱
- 2021-03-25 01:41
oracle提取表一个 表3-5行，用两种sql语句实现，其中一种用minus
最佳答案
- 五星知识达人网友：未来江山和你
- 2021-03-25 02:36
满意请采纳
方法一：
select * from tabletest1 a
where rownum <= 5
minus
select * from tabletest1 b
where rownum <= 2
方法二：
select * from
(
select a.*, rownum as rn from tabletest1 a
where rownum <= 5
) b
where b.rn > 2;
方法三：
select * from
(
select a.*, rownum as rn from tabletest1 a
) b
where b.rn between 3 and 5;
方法一：
select * from tabletest1 a
where rownum <= 5
minus
select * from tabletest1 b
where rownum <= 2
方法二：
select * from
(
select a.*, rownum as rn from tabletest1 a
where rownum <= 5
) b
where b.rn > 2;
方法三：
select * from
(
select a.*, rownum as rn from tabletest1 a
) b
where b.rn between 3 and 5;
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