Select Top在不同数据库中的使用用法：

1. Oracle数据库

SELECT * FROM TABLE1 WHERE ROWNUM<=N
 

2. Infomix数据库

SELECT FIRST N * FROM TABLE1
 

3. DB2数据库

SELECT * ROW_NUMBER() OVER(ORDER BY COL1 DESC) AS ROWNUM WHERE ROWNUM<=N
 

或者

SELECT COLUMN FROM TABLE FETCH FIRST N ROWS ONLY
 

4. SQL Server数据库

SELECT TOP N * FROM TABLE1
 

5. Sybase数据库

SET ROWCOUNT N
GO
SELECT * FROM TABLE1
 

6. MySQL数据库

SELECT * FROM TABLE1 LIMIT N
 

7. FoxPRo数据库

SELECT * TOP N FROM TABLE ORDER BY COLUMN
 

资料引用:http://www.knowsky.com/398735.html