How to export a SQL Server 2008 Database Diagram to another DB?

Question

I use the handy Database Diagramming tool in SQL Server 2008 for creating and managing relationships. I have exported the sourceDB to the destinationDB but the diagram does

Answer 1

You can get rid of the UPDATE statement by fixing your INSERT statement - specifically the select portion. You are inserting the diagram_id column into the principal_id column (diagram_id is an identity).

Change it to:

DECLARE @SourceDiagramId int = 1
INSERT INTO [DestinationDB].[dbo].sysdiagrams
SELECT [name],principal_id,version,definition from [SourceDB].[dbo].sysdiagrams
WHERE diagram_id = @SourceDiagramId

And presto, it's all in there right the first time.