select语句上的SQL内连接

Question

我正在尝试在这样的select语句上进行内部联接：

select *
from (select* from bars  where rownum <= 10 )as tab1
inner join (select * from bars  where rownum <= 10 )as tab2
on tab1.close=tab2.close

我收到以下错误： ORA-00933 SQL命令未正确结束 任何帮助将不胜感激，谢谢！

Answer 1

只需从查询中删除as：

select *
from (select* from bars  where rownum <= 10 ) tab1
inner join (select * from bars  where rownum <= 10 ) tab2
on tab1.close=tab2.close

Answer 2

我认为错误来自你需要一个分号来结束语句。否则，选择对我来说很好。

Answer 3

select * from 
((select* from bars  where rownum <= 10 )as tab1
inner join (select * from bars  where rownum <= 10 )as tab2
on tab1.close=tab2.close)

Answer 4

只需在'）'和'as'之间添加一个空格：

select * from (select* from bars  where rownum <= 10 ) as tab1
 inner join
 (select * from bars  where rownum <= 10 ) as tab2
 on
 tab1.close=tab2.close