db2獲得剛插入的自增字段的值：
values(identity_val_local())


Select Top在不同數據庫中的使用用法：


1. Oracle數據庫

<CENTER><CCID_NOBR> SELECT * FROM TABLE1 WHERE ROWNUM<=N



2. Infomix數據庫


SELECT FIRST N * FROM TABLE1


3. DB2數據庫


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數據庫


SELECT TOP N * FROM TABLE1


5. Sybase數據庫


SET ROWCOUNT N
GO
SELECT * FROM TABLE1



6. MySQL數據庫


SELECT * FROM TABLE1 LIMIT N



7. FoxPro數據庫


SELECT * TOP N FROM TABLE ORDER BY COLUMN

轉載自http://tech.techweb.com.cn/archiver/tid-243262.html