Select Top在不同数据库中的使用用法：

1. Oracle数据库

<CENTER><CCID_NOBR> 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