sql在不同数据库查询前几条数据

来源：未知责任编辑：责任编辑发表时间:2015-10-08 14:17　点击:次

sql在不同数据库查询前几条数据

1. ORACLE

SELECT * FROM TABLE1 WHERE ROWNUM<=N

HQL: from table1 t order by t.createTime desc where rownum<=n

2. INFORMIX

SELECT FIRST N * FROM TABLE1

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3. DB2

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

SELECT TOP N * FROM TABLE1

5. SYBASE

SET ROWCOUNT N

SELECT * FROM TABLE1

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6. MYSQL

SELECT * FROM TABLE1 LIMIT N

hibernate查询记录的前10条记录

就像mysql的SQL语句的"select * from table limit 10" hql 不支持limit

query.setFirstResult(0);//从第0条开始取

query.setMaxResults(10);//取十条记录

7. FOXPRO

SELECT * TOP N FROM TABLE ORDER BY COLUMN

8.postgres查询前几条记录SQL

SELECT * FROM TABLE LIMIT