ORACLE中如何获取第一条记录

[wwyyhhww]

如何获取第一条记录?

[xiaoxiao1984]

select * from (select a.*, rownum as rn from tab_name a order by col )where rn = 1
or
select * from tab_name where rownum = 1

[狂风乱影]

加条件
rownum=1

[letqqqgo]

select * from tab where rownum = 1

[左大神在这]

select * from tablename where rownum = 1

[cool906]

select * from table_XXX(表名) where rownum<=n n代表前n行数据

oracle 没有象ms sql一样 的top 关键字,rownum是值我们可见当前进程的数据顺序.
rownum只支持 < 与 <= 是不支持= 的

我也是刚转到oracle 有点不习惯

[临摹]

rownum可以用=,但只能用在rownum=1这种情况。

[neu_zhangqi_soft]

这是个前n行查询/分析问题,利用虚伪列进行查询rownum=1

[kind01]

select * from tab1 where rownum<2

[wufeng135]

select * from tableName where rownum <= 1
或者
select * from tableName where rownum < 2

[wwyyhhww]

select * from (select a.*, rownum as rn from XAAP.TAPAPS1 a order by VENDOR_CODE desc) where rn < 2
但是获得不了降序后的第一条记录啊

[chaofei2007]

欢迎加入oracle学习群27257022

[xiaoxiao1984]

select * from
(select a.*, , rownum as rn from
(select a.* from XAAP.TAPAPS1 a order by VENDOR_CODE desc)a)
where rn < 2

[Zongjianchang]

加上按条件排序后就不行了。