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