我正在为公司项目制作报告模块。虽然我们在应用程序中使用了ORM,但我决定为报告编写存储过程以预期迁移到SSRS。
这些存储过程需要表值参数输入。因此,我创建了我的表类型:
USE MyDatabase
GO
/****** Object: UserDefinedTableType [dbo].[IntList] Script Date: 5/8/2013 5:20:59 PM ******/
CREATE TYPE [dbo].[IntList] AS TABLE(
[Id] [int] NOT NULL,
PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (IGNORE_DUP_KEY = OFF)
)
GO
我有以下SQL Server存储过程:
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
USE MyDatabase
GO
-- =============================================
-- Author: <lunchmeat317>
-- Create date: <05/06/2013>
-- Description: <File Type Report>
-- =============================================
ALTER PROCEDURE Report_FileType
@filetype varchar(20) = null,
@User intList READONLY,
@Group intList READONLY
AS
BEGIN
SET NOCOUNT ON;
/*
lf = LibraryFile
lfu = LibraryFileAssignedUser
lfg = LibraryFileAssignedGroup
*/
SELECT Extension AS FileType, COUNT(1) AS TotalFiles
FROM LibraryFile lf
LEFT JOIN LibraryFileAssignedUser lfu
ON (SELECT COUNT(1) FROM @User) != 0
AND lfu.LibraryFileId = lf.Id
LEFT JOIN LibraryFileAssignedGroup lfg
ON (SELECT COUNT(1) FROM @Group) != 0
AND lfg.LibraryFileId = lf.Id
WHERE ((@filetype IS NULL) OR (Extension = @filetype))
AND (
((@User IS NULL) OR (lfu.UserId IN (SELECT * FROM @User)))
OR ((@Group IS NULL) OR (lfg.HubGroupId IN (SELECT * FROM @Group)))
)
GROUP BY Extension
END
GO
当我尝试更改存储过程时,我不断收到错误消息
Msg 137, Level 16, State 1, Procedure Report_FileType
Must declare the scalar variable "@User".
Msg 137, Level 16, State 1, Procedure Report_FileType
Must declare the scalar variable "@Group".
我无法弄清楚为什么会这样。如果我使用标量类型(并更新我的代码以匹配)它可以工作。但是,当我尝试使用TVP时,我无法编译存储过程。
为了它的价值,我添加了类型,但我还没有设置它的权限。但是,我不认为这会导致编译错误;它只会在运行时导致错误(我之前已经处理过)。
有没有人对此问题有任何经验?谢谢!
答案 0 :(得分:1)
有趣的是,我之前没有使用过这个,但似乎你无法测试@User / @Group IS NULL
,因为它是一张桌子。
参看