C# 将值从一个存储过程返回到另一个存储过程
我想使用从一个存储过程到另一个存储过程的返回值。我在互联网上搜索并尝试了几种解决方案,但都不起作用,我不知道我犯了什么错误 我要使用其返回值的存储过程是:C# 将值从一个存储过程返回到另一个存储过程,c#,asp.net,sql-server,stored-procedures,C#,Asp.net,Sql Server,Stored Procedures,我想使用从一个存储过程到另一个存储过程的返回值。我在互联网上搜索并尝试了几种解决方案,但都不起作用,我不知道我犯了什么错误 我要使用其返回值的存储过程是: CREATE PROCEDURE dbo.pro_ForeignKeyCheck (@tableName VARCHAR(100), @columnName VARCHAR(100), @idValue INT) AS BEGIN SET NOCOUNT ON DECLARE fksCur
CREATE PROCEDURE dbo.pro_ForeignKeyCheck
(@tableName VARCHAR(100),
@columnName VARCHAR(100),
@idValue INT)
AS BEGIN
SET NOCOUNT ON
DECLARE fksCursor CURSOR FAST_FORWARD FOR
SELECT
tc.table_name, ccu.column_name
FROM
information_schema.table_constraints tc
JOIN
information_schema.constraint_column_usage ccu ON tc.constraint_name = ccu.constraint_name
JOIN
information_schema.referential_constraints rc ON tc.constraint_name = rc.constraint_name
JOIN
information_schema.table_constraints tc2 ON rc.unique_constraint_name = tc2.constraint_name
JOIN
information_schema.constraint_column_usage ccu2 ON tc2.constraint_name = ccu2.constraint_name
WHERE
tc.constraint_type = 'Foreign Key'
AND tc2.table_name = @tableName
AND ccu2.column_name = @columnName
ORDER BY
tc.table_name
DECLARE @fkTableName VARCHAR(100),
@fkColumnName VARCHAR(100),
@fkFound BIT,
@params NVARCHAR(100),
@sql NVARCHAR(500)
OPEN fksCursor
FETCH NEXT FROM fksCursor INTO @fkTableName, @fkColumnName
SET @fkFound = 0
SET @params = N'@fkFound BIT OUTPUT'
WHILE @@fetch_status = 0 AND COALESCE(@fkFound, 0) <> 1
BEGIN
SELECT @sql = 'set @fkFound = (select top 1 1 from [' + @fkTableName + '] where [' + @fkColumnName + '] = ' + cast(@idValue as varchar(10)) + ')'
PRINT @sql
EXEC sp_executesql @sql, @params, @fkFound OUTPUT
FETCH NEXT FROM fksCursor INTO @fkTableName, @fkColumnName
END
CLOSE fksCursor
DEALLOCATE fksCursor
SELECT COALESCE(@fkFound, 0)
RETURN 0
END
或
它可以工作,但我不能在其他存储过程中使用返回值
CREATE PROCEDURE [dbo].[pro_Delete_acount]
@UserID int,
@Action NVARCHAR(10)
AS
BEGIN
SET NOCOUNT ON;
DECLARE @count int , @ErrNo int , @ErrMsg varchar(2000), @exit int
set @exit=0
if @Action ='ADMIN'
begin
/*---------Call Store Procedure pro_ForeignKeyCheck to check if there is value are exit in child table*/
--EXEC @exit = pro_ForeignKeyCheck1 @tablename='tb_M_admin',@columnName='admin_id',@idValue= @UserID
--select @exit
--EXEC @exit = pro_ForeignKeyCheck @tablename='tb_M_admin',@columnName='admin_id',@idValue= 1
EXEC @exit = pro_ForeignKeyCheck 'tb_M_admin','admin_id', 0
--select @exit
select -2[Ret_Status],@exit[ErrNo],0[ErrMsg] -- test
end
end
有人能帮我吗
谢谢大家
EXEC @exit = pro_ForeignKeyCheck 'tb_M_admin','admin_id', 0
---
select coalesce(@fkFound,0)
return 0 --< this will be assigned to @exit
您可以出于其他目的离开
select
,但这不会影响返回值。因此,您也可以将其删除。这是一个SP从另一个SP调用的过于简化的示例。我希望它能给你一些想法
create procedure dbo.first_proc
@bd datetime,
@d int output
as
select @d= DATEDIFF(day,@bd,getdate())
go
create procedure dbo.sec_proc
@birthday datetime
as
declare @days int
exec dbo.first_proc @birthday, @days output
select 'you live '+cast(@days as varchar) + ' days' result
go
exec dbo.sec_proc '1959-09-17'
加
在pro_ForeignKeyCheck
中,它以
CREATE PROCEDURE dbo.pro_ForeignKeyCheck1
@tableName VARCHAR(100),
@columnName VARCHAR(100),
@idValue int,
@Status int OUTPUT
最后,我做了如下的事情
--select coalesce(@fkFound,0)
select @Status = coalesce(@fkFound,0)
--return 0
停止最后一行并添加新的
在另一个存储过程中,按如下方式调用它
EXEC pro_ForeignKeyCheck1 'tb_M_admin','admin_id', 0 ,@exit output
select @exit
现在将使用返回值
感谢所有的可能您需要在SPsDear@AlexKudryashev中的某个地方使用output
关键字,我尝试了一下,但不起作用。您需要创建不带out参数的存储过程。您可以参考下面的文章以供参考测试您的光标
代码-它返回任何东西吗?从tb_M_admin中选择*,其中admin_id=0
-此返回任何东西吗?亲爱的,在我的示例中,我尝试了正确和错误的admin_id并返回相同的东西,但现在我尝试了@alex Kudryashev所说的方法并获得了它。非常感谢AllThank亲爱的alex Kudryashev我明白了
@Status int OUTPUT
CREATE PROCEDURE dbo.pro_ForeignKeyCheck1
@tableName VARCHAR(100),
@columnName VARCHAR(100),
@idValue int,
@Status int OUTPUT
--select coalesce(@fkFound,0)
select @Status = coalesce(@fkFound,0)
--return 0
EXEC pro_ForeignKeyCheck1 'tb_M_admin','admin_id', 0 ,@exit output
select @exit