每行前面编个号。比方说realrow
用while循环咯declare @row
set @row = 0
while @row<=总行数/100
update ...where realrow/100 = @row
set @row = @row + 1
....随手写的伪代码,根据需求修改
用while循环咯declare @row
set @row = 0
while @row<=总行数/100
update ...where realrow/100 = @row
set @row = @row + 1
....随手写的伪代码,根据需求修改
--1-40万的序号重新生成
select * , px = (select count(*) from tb where id < t.id) + 1 from tb t--1-100显示为1 , 101 - 200 显示为 2...
select * , cnt = (px - 1) / 100 from
(
select * , px = (select count(*) from tb where id < t.id) + 1 from tb t
) t
1.
select top m * into 临时表(或表变量) from tablename order by columnname -- 将top m笔插入
set rowcount n
select * from 表变量 order by columnname desc
2.
select top n * from
(select top m * from tablename order by columnname) a
order by columnname desc
3.
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
4.
如果表里有identity属性,那么简单:
select * from tablename where identitycol between n and m