SQLServer用存储过程实现插入更新数据示例

Create proc Insert_Update 
@Id varchar(20), 
@Name varchar(20), 
@Telephone varchar(20), 
@Address varchar(20), 
@Job varchar(20), 
@returnValue int output 
as 
declare 
@tmpName varchar(20), 
@tmpTelephone varchar(20),

@tmpJob varchar(20),
@tmpAddress varchar(20)
if exists(select * from dbo.DemoData where id=@Id) 
begin 
select @tmpName=Name,@tmpTelephone=Telephone,@tmpAddress=Address,@tmpJob=Job from dbo.DemoData where id=@Id 
if ((@tmpName=@Name) and (@tmpTelephone=@Telephone) and (@tmpAddress=@Address)and (@tmpJob=@Job)) 
begin 
set @returnValue=0 --有相同的数据，直接返回值 
end 
else 
begin 
update dbo.DemoData set Name=@Name,Telephone=@Telephone,Address=@Address,Job=@Job where id=@Id 
set @returnValue=2 --有主键相同的数据，进行更新处理 
end 
end 
else 
begin 
insert into dbo.DemoData values(@Id,@Name,@Telephone,@Address,@Job) 
set @returnValue=1 --没有相同的数据，进行插入处理 
end

declare @returnValue int 
exec Insert_Update '15','hugh15','3823345','长安街','副部长',@returnValue output 
select @returnValue