使用 LIMIT 时 SQL 命令未正确结束

Question

我正在 SQL Developer 中执行以下查询。

SELECT * FROM Person where person_name='rahul' order by created_time desc limit 10;

当我执行它时，SQL Developer 给了我以下错误。

ORA-00933: SQL command not properly ended
00933. 00000 -  "SQL command not properly ended"
*Cause:    
*Action:

我使用以下链接作为参考。

https://www.techonthenet.com/sql/select_limit.php

我已经试过了

SELECT * FROM Person where person_name='rahul' order by created_time desc OFFSET 5 ROWS FETCH NEXT 10 ROWS ONLY;

ORA-00933: SQL command not properly ended
00933. 00000 -  "SQL command not properly ended"
*Cause:    
*Action:
Error at Line: 1 Column: 75

请注意，OFFSET 不被视为关键字。

Answer 1

是的，那是因为 Oracle 没有或不支持 limit 子句，因此您会收到 ORA-00933 错误。相反，使用FETCH .. OFFSET 构造类似

SELECT * FROM Person 
where person_name='rahul' 
order by created_time desc 
OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY;

StackOverflow 中有很多类似的问题。应该尝试搜索相同的。比如这个：How do I limit the number of rows returned by an Oracle query after ordering?

Answer 2

我已使用以下查询解决了该问题。

SELECT * FROM Person where person_name='rahul' and rownum between 1 and 2 order by created_time desc;

Answer 3

如果你得到

ORA-00933: SQL command not properly ended
00933. 00000 -  "SQL command not properly ended"
*Cause:    
*Action:

这可能是因为您没有运行 Oracle 12。在这种情况下，有一些变通方法，都涉及子查询并且最草率。我用过

select * from 
    ( select column_name, ROWNUM rnum from 
        ( select * from table_name) 
    where ROWNUM <= max_row )
where rnum  >= min_row order by column_name;