sql计算出百分比

Code

select a.level,a.Subtotal,b.total ,SUBSTRING (convert(varchar (20),(a.Subtotal*1.0/b.total*100)),1,4)+'%' as perTotal from

(

select level, COUNT(*) as Subtotal from T_UserInfo where VerSionID='V20081205002' group by Level

)a,

(

select COUNT(*) as total from T_UserInfo where VerSionID='V20081205002'

最后的结果
level Subtotal total perTotal

中 23 86 26.7%
低 26 86 30.2%
高 37 86 43.0%[/code]