今天寫的統計的存儲過程

create procedure statisticsDis
as
declare @schoolId nvarchar(2),@schoolName nvarchar(50),@schools int
declare @signNum int
select @schools=count(*) from tSchool

delete from tStatSchool

declare schoolCur cursor forward_only for select schoolId,schoolName from tSchool order by schoolId
open schoolCur

while @schools!=0
begin
fetch next from schoolCur into @schoolId,@schoolName
select @signNum=count(*) from tCompetitor where schoolId = @schoolId

insert into tStatSchool(schoolId,schoolName,signNum) select @schoolId,@schoolName,@signNum

@schools=@schools-1
end

close schoolCur
deallocate schoolCur
go