select語句上的SQL內連接

Question

我試圖在這樣的選擇語句上進行內部聯接：

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

並且我收到以下錯誤：ORA-00933 SQL命令未正確結束任何幫助將不勝感激，謝謝！

Answer 1

只是刪除as您查詢：

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

我相信錯誤來自你需要一個分號來結束語句。 否則，選擇對我來說很好。

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'之間添加一個空格：

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