oracle/db2/sqlserver/sybase/mysql数据库取前几条数据写法

		
oracle/db2/sqlserver/sybase/mysql数据库取前几条数据写法
 
1. ORACLE
SELECT * FROM TABLE1 WHERE ROWNUM<=N 
 
2. INFORMIX 
SELECT FIRST N * FROM TABLE1 where 1=1 
 
3. DB2 
SELECT * ROW_NUMBER() OVER(ORDER BY COL1 DESC) AS ROWNUM WHERE ROWNUM<=N 
或者 
SELECT COLUMN FROM TABLE where 1=1 FETCH FIRST N ROWS ONLY 
 
4. SQL SERVER 
SELECT TOP N * FROM TABLE1 where 1=1 
或者
SET ROWCOUNT N SELECT * FROM TABLE1 where 1=1 SET ROWCOUNT N1 
 
5. SYBASE
 SET ROWCOUNT N SELECT * FROM TABLE1 where 1=1 SET ROWCOUNT N1 
注：执行SET ROWCOUNT 0 可取消ROWCOUNT设置
 
6. MYSQL 
SELECT * FROM TABLE1 where 1=1 LIMIT N 
 
7. FOXPRO 
SELECT * TOP N FROM TABLE ORDER BY COLUMN 
 
8. ACCESS 
SELECT TOP N * FROM TABLE1 where 1=1
 
						
		
	

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