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 Can't install Database Diagrams in SQL Express
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Yak Posting Veteran

55 Posts

Posted - 04/02/2013 :  18:16:01  Show Profile  Reply with Quote
I am using the AdventureWorks2012 database in SQL Express on my PC.

Under the AdventureWorks2012 folder, I expanded the folder called Database Diagrams and I received an error message:

"Database diagram support objects cannot be installed because this database doesn't have a valid owner. To continue, first use the Files page of the Database Properties dialog box or the ALTER AUTHORIZATION statement to set the database owner to a valid login, then add the database diagram support objects."

What does all this mean, and how do I get the Database Diagrams to appear so I can see how all the tables are interconnected?

James K
Flowing Fount of Yak Knowledge

3873 Posts

Posted - 04/02/2013 :  20:51:50  Show Profile  Reply with Quote
Try doing what the error message is telling you. Go to the database properties and set an owner for the database.
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Starting Member

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Posted - 12/09/2013 :  13:37:52  Show Profile  Reply with Quote
I have the same problem. When I checked the Files page of the Database properties I've seen that my username is there as an owner.

Could you explain please the second part of this error message?
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