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