T-SQL 带参数存储过程

创建带参数的存储过程

 

 

use StudentManager
go
if exists(select * from sysobjects where name='usp_ScoreQuery4')
drop procedure usp_ScoreQuery4
go
create procedure usp_ScoreQuery4 --创建带参数的存储过程
@AbsentCount int output,--缺考总人数
@FailedCount int output,--不及格总人数
@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        --显示结果列表 
    select @AbsentCount=count(*) from Students 
                where StudentId not in(select StudentId from ScoreList) --查询缺考总人数
    select @FailedCount=count(*) from ScoreList
                 where CSharp<@CSharp or SQLServerDB<@DB      --查询不及格总人数
go

调用

use StudentManager
go
--调用带参数的存储过程
declare @AbsentCount int,@FailedCount int --首先定义输出参数
exec usp_ScoreQuery4 @AbsentCount output,@FailedCount output
--使用反馈的结果
select 缺考总数=@AbsentCount,不及格总数=@FailedCount

调用时传入输入参数

use StudentManager
go
--调用带参数的存储过程
declare @AbsentCount int,@FailedCount int --首先定义输出参数
exec usp_ScoreQuery4 @AbsentCount output,@FailedCount output ,65,70
--使用反馈的结果
select 缺考总数=@AbsentCount,不及格总数=@FailedCount