45 lines
949 B
Transact-SQL
45 lines
949 B
Transact-SQL
-- Schema: dbo
|
|
-- Stored Procedure: sp_dropdiagram
|
|
|
|
|
|
CREATE PROCEDURE dbo.sp_dropdiagram
|
|
(
|
|
@diagramname sysname,
|
|
@owner_id int = null
|
|
)
|
|
WITH EXECUTE AS 'dbo'
|
|
AS
|
|
BEGIN
|
|
set nocount on
|
|
declare @theId int
|
|
declare @IsDbo int
|
|
|
|
declare @UIDFound int
|
|
declare @DiagId int
|
|
|
|
if(@diagramname is null)
|
|
begin
|
|
RAISERROR ('Invalid value', 16, 1);
|
|
return -1
|
|
end
|
|
|
|
EXECUTE AS CALLER;
|
|
select @theId = DATABASE_PRINCIPAL_ID();
|
|
select @IsDbo = IS_MEMBER(N'db_owner');
|
|
if(@owner_id is null)
|
|
select @owner_id = @theId;
|
|
REVERT;
|
|
|
|
select @DiagId = diagram_id, @UIDFound = principal_id from dbo.sysdiagrams where principal_id = @owner_id and name = @diagramname
|
|
if(@DiagId IS NULL or (@IsDbo = 0 and @UIDFound <> @theId))
|
|
begin
|
|
RAISERROR ('Diagram does not exist or you do not have permission.', 16, 1)
|
|
return -3
|
|
end
|
|
|
|
delete from dbo.sysdiagrams where diagram_id = @DiagId;
|
|
|
|
return 0;
|
|
END
|
|
|