※天涯问津

[b][u]sql server中top，oracle中rownum，mysql中limit函数[/u][/b] [b]Sql server————[/b]//列出前5行 select top 5 * from table //查询第11行到第20行记录 select top 10 * from [表名] where [主键] not in (select top 10 [主键] f...

[b]MySQL查询表内重复记录[/b] [b](一)[/b] 1、查找表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断 select * from people where peopleId in (select peopleId from people group by peopleId having count(peopleId) > 1) 2...