七種數據庫中 Select top的用法

Select Top在不同數據庫中的使用用法：

數據庫

---

1. Oracle

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