讲解七种数据库中Select Top的使用方法

SELECT * FROM TABLE1 WHERE ROWNUM<=N

SELECT FIRST N * FROM TABLE1

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

SELECT COLUMN FROM TABLE FETCH FIRST N ROWS ONLY

SELECT TOP N * FROM TABLE1

SET ROWCOUNT N 
GO
SELECT * FROM TABLE1

SELECT * FROM TABLE1 LIMIT N

SELECT * TOP N FROM TABLE ORDER BY COLUMN