db2, oracle和sqlserver取前几行的语法
db2:
select * from tab fetch first 10 rows only
oracle:
select * from tab where rownum <=10
sqlserver:
select top 10 * from tab
mysql:
select * from tab limit 10
数据库前10行数据
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转载自ming7755.iteye.com/blog/1740890
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