T-SQL 有参数存储过程的创建与执行

use StudentManager
go
if exists(select * from sysobjects where name='usp_ScoreQuery2')
drop procedure usp_ScoreQuery2
go
--创建带参数的存储过程
create procedure usp_ScoreQuery2 
@CSharp int,
@DB int
as
    select Students.StudentId,StudentName,C#=CSharp,DB=SQLServerDB
    from Students
    inner join ScoreList on Students.StudentId=ScoreList.StudentId
    where CSharp<@CSharp or SQLServerDB<@DB
go
--调用带参数的存储过程
exec usp_ScoreQuery2 60,65 --按照参数顺序赋值
exec usp_ScoreQuery2 @DB=65,@CSharp=60 --参数顺序可以调换

为参数赋默认值

use StudentManager
go
if exists(select * from sysobjects where name='usp_ScoreQuery3')
drop procedure usp_ScoreQuery3
go
--创建带参数的存储过程
create procedure usp_ScoreQuery3 
@CSharp int=60,
@DB int=60
as
    select Students.StudentId,StudentName,C#=CSharp,DB=SQLServerDB
    from Students
    inner join ScoreList on Students.StudentId=ScoreList.StudentId
    where CSharp<@CSharp or SQLServerDB<@DB
go
--调用带参数的存储过程
exec usp_ScoreQuery3 65 --第二个参数没有赋值，则默认
exec usp_ScoreQuery3 @DB=65
exec usp_ScoreQuery3 default,65 --不使用显示方式赋值
exec usp_ScoreQuery3   --两个参数都是用默认参数