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SQL按指定文字顺序进行排序(中文或数字等)

在有些情况下我们需要按指定顺序输出数据,比如选择了ID in(3,1,2,5,4)我们希望按这个3,1,2,5,4的顺序输出,这样只使用order by ID是无法实现的,

但是我们可以使用order by charindex(‘,‘+convert(varchar,ID)+‘,‘,‘,3,1,2,5,4,‘)的方法来实现这个目的。举例如下:

Create Table info(ID int identity(1,1) not null,title varchar(100) not null)insert into info(title) values(aa)insert into info(title) values (bb)insert into info(title)values(cc)insert into info(title) values(dd)insert into info(title)values(ee)/*方法一:*/select id,titlefrom infowhere id in (3,1,2,5,4)order by charindex(,+convert(varchar,ID)+, , ,3,1,2,5,4,)/*方法二:*/select id,titlefrom infowhere id in (3,1,2,5,4)--where id in (‘1‘,‘2‘,‘3‘,‘4‘,‘5‘)order by  CHARINDEX(RTRIM(CAST(id as NCHAR)), ,3,1,2,5,4,)/*其它示例*/select prx_class,prx_name,isnull(sum(sunMen),0) as sunMen,isnull(sum(sumMoney),0)  as sumMoney  from (   select prx_class,prx_code,prx_name,isnull(sum(money),0) as sunMen, case when prx_code=项目冲减 then isnull(sum(num),0) * -1  else isnull(sum(num),0) end   as sumMoney     from receive_paybill       WHERE the_date >=2014/6/1 0:00:00 AND the_date<=2014/6/10 0:00:00  and prx_code is not null and prx_code<>‘‘ and substoreid=004     group by prx_code,prx_name,prx_class ) as tb group by prx_name,prx_class--order by CHARINDEX(RTRIM(CAST(prx_class as NCHAR)),‘,小商品,钟点房费,会员卡费,房费,‘)  descorder by charindex(,+prx_class+,,,小商品,钟点房费,会员卡费,房费,) desc