Select Top在不同数据库中的使用用法：
1. Oracle数据库
<ccid_code>SELECT * FROM TABLE1 WHERE ROWNUM<=N |
2. Infomix数据库
<ccid_code>SELECT FIRST N * FROM TABLE1 |
3. DB2数据库
<ccid_code>SELECT * ROW_NUMBER() OVER(ORDER BY COL1 DESC) AS ROWNUM WHERE ROWNUM<=N |
或者
<ccid_code>SELECT COLUMN FROM TABLE FETCH FIRST N ROWS ONLY |
4. SQL Server数据库
<ccid_code>SELECT TOP N * FROM TABLE1 |
5. Sybase数据库
<ccid_code>SET ROWCOUNT N GO SELECT * FROM TABLE1 |
6. MySQL数据库
<ccid_code>SELECT * FROM TABLE1 LIMIT N |
7. FoxPro数据库
<ccid_code>SELECT * TOP N FROM TABLE ORDER BY COLUMN |