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时间:大约一个多小时

代码:100来行？

博客:1

知识点:数据库

CREATE PROCEDURE prl
As
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
SELECT cOUNT(*)from sc where Grade<60
END
GO

CREATE PROCEDURE pr3
As
BEGIN
declare @dj int , @cname char (20 ) , @cno char (6) , @sno char (9) , @grade int
declare cur_cn0 cursor for select grade , cno , sno from scopen cur_cno
fetch next from cur_cno into @grade , @cno ,@sno print'学号   课程号   等级'
print '================='
while @@FETCH_STATUS=0
begin
if(@grade between 81 and 100)set @dj=5
else if(@grade between 61 and 80)set @dj=4
else if(@grade between 41 and 60)set @dj=3
else if(@grade between 21 and 40)set @dj=2
else set @dj=1
print @sno +''+@cno+''+@dj+' '
print '-----------------'
fetch next from cur_cno into @grade , @cno , @sno
end
print '================='close cur_cno
END
GO