统计百分比的一个SQL脚本

 1 declare @num1 nvarchar(10),@num2 nvarchar(10)
 2 declare @num3 decimal,@num4 decimal
 3 declare @percent decimal
 4 
 5 select @num1=COUNT (*)  from [Test] where Status=0  ;
 6 select @num2=COUNT (*) from [Test] ;
 7 set @num3=CONVERT(int,@num1)
 8 set @num4=CONVERT(int,@num2)
 9 select @percent=CONVERT(DECIMAL(18,2),@num3*10000/@num4) 
10 --万分比
11 --set @percent=@percent/100
12 print @percent