Question

SQL查询前几条记录

Answer 1

各种不同的数据库查询前N条记录，都不一样，现在总结了一下，列了出来： 1. ORACLE SELECT * FROM TABLE1 WHERE ROWNUM<=N 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 NGOSELECT * FROM TABLE1 6. MYSQL SELECT * FROM TABLE1 LIMIT N 7. FOXPRO SELECT * TOP N FROM TABLE ORDER BY COLUMN 8.postgres查询前几条记录SQL SELECT * FROM TABLE LIMIT

Answer 2

--可以使用 top 关键字例如：

select top 100 *  from 表名

 语句的意思就是 显示表前100条数据

Answer 3

select top 5 * from table
查询前5条