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Issue Fixed : Database diagram support objects cannot be installed because this database does not have a valid owner

Sometimes when you try to create database diagram for your SQL Server database you will get an error like below.


This error gave due to lack of authority for the database and it doesn't have a valid owner.

So, Lets give the authority.

Steps:

  • Right click on Database 
  • Go to properties
  • Go to Files tab
  • Click the browse icon (small square button in-front of textbox )
  • Click browse.. and check 'sa'
  • Click OK 


 Now the problem is sorted and you can enjoy data modelling with database
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