Tuesday, November 16, 2010

SQL: Select M to N records

1.select top m * from tablename where id not in (select top n id from tablename) 
2.select top m * into #temp from tablename order by columnname -- 将top m笔插入 
set rowcount nselect * from #temp
 order by columnname desc 
3.select top n * from
(select top m * from tablename order by columnname) aorder by columnname desc 
4.如果tablename里没有其他identity列,那么:select identity(int) id0,* into #temp from tablename 

取n到m条的语句为:select * from #temp where id0 > =n and id0  <= m 

如果你在执行select identity(int) id0,* into #temp from tablename这条语句的时候报错,那是因为你的DB中间的select into/bulkcopy属性没有打开要先执行:exec sp_dboption 你的DB名字,'select into/bulkcopy',true 
5.如果表里有identity属性,那么简单:select * from tablename where identitycol between n and m

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