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if exists(select * from sysobject where name='proc name' and type='p')
drop proc proc name
   go
2.¶¨Òå´æ´¢¹ý³Ì
create proc test
@gradel int, --¶¨Òå±äÁ¿
@gradeh int output --¶¨ÒåÊä³ö±äÁ¿
as
...
go
3.Ö´Ðд洢¹ý³Ì
declare @l int,@h int
exec proc test 34,@h output
print @h
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c±í£º£¨c#£º¿Î³ÌºÅ£¬cname:¿Î³ÌÃû£¬teacher£ºÀÏʦ£©
sc±í£º£¨s#,c#,grade)
if exists(select * from sysobjects where name='sort'
          and type='p')
drop proc sort
go --¶¨ÒåÒ»¸ö´æ´¢¹ý³ÌÓÃÓÚÅÅÐò
create proc sort
@high int,
@low int,--¶¨ÒåÁ½¸öÊäÈë²ÎÊý
@hi int output,
@lo int output--¶¨ÒåÁ½¸öÊä³ö²ÎÊý
as
if @high<@low
begin
set @high=@high+@low
set @low=@high-@low
set @high=@high-@low
set @hi=@high
set @lo=@low
end
go --Èç¹ûδ°´Ë³ÐòÊäÈëÔòÅÅÐò
if exists(select * from sysobjects where name='search' and type='p')
drop proc search
go --¶¨ÒåÒ»¸ö´æ´¢¹ý³ÌÓÃÓÚ²éÕÒÏàÓ¦·¶Î§µÄ¼Ç¼
create proc search
@gradeh int,
@gradel int
as
select * from sc where grade between @gradel and @gradeh
if @@rowcount=0
print '²éѯʧ°Ü'
go
declare @h int,@l int
exec testpro 70,90,@h output,@l output
exec search @h,@l
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CREATE TABLE tb(id int, [value] varchar(10))
INSERT tb SELECT 1, 'aa'
UNION ALL SELECT 1, 'bb'
UNION ALL SELECT 2, 'aaa'
UNION ALL SELECT 2, 'bbb'
UNION ALL SELECT 2, 'ccc'
--SELECT * from tb
/**//*
id value
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