8种热门数据库取前几条记录操作总结
新炬分享8种热门数据库取前几条记录操作总结1. ORACLE
SELECT * FROM TABLE1 WHERE ROWNUM<=N– Oracle 12C之前的版本
2. INFORMIX
SELECT FIRST N * FROM TABLE1
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
GO
SELECT * FROM TABLE1
6. MYSQL
SELECT * FROM TABLE1 LIMIT N
7. FOXPRO
SELECT * TOP N FROM TABLE ORDER BY COLUMN
8. TimesTen
SELECT FIRST N * FROM TABLE1 学习了
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