When I click on the Database Diagram node in Sql Server 2005, I get an error message that tells me the databse object cannot be installed.

Posted on 2006-11-02
Last Modified: 2012-06-22
I just loaded Sql Server 2005 Developer Edition onto my server to help with developing ADO.Net apps. I tried to creat a diagram using a couple of related tables but I got an error message: "Database objects cannot be installed because the database does not have a valid owner". I never had to do this with Sql server 2000 to create my diagrams. What do I need to install to make some diagrams?

Question by:grouchyfd
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LVL 18

Expert Comment

ID: 17861171
The database was probably a sql 2000 database i guess?     Check the database compatibility level in database properties.    it must be set to 9.0 or you cant create diagrams.

Author Comment

ID: 17861547
I can't seem to locate any thing like this in the properties windows of the database. The rest of the message is:
"To continue, first use the Files page of the Database Properties box or the ALTER AUTHORIZATION statement to set the database owner to a valid login, then add the database diagram support objects."  When I open the Files page, database owner is listed as (my server name)\Administrator. I also have it set up with Windows Authentication so I wouldn't have to login to the server all the time.
LVL 18

Expert Comment

ID: 17861907
dont worry about the detail of the error message ,it's misleading.

from SQL Server MAnagement Studio:
right click the database and click properties,   from there on the left hand side click on "Options".   the screen shows a field called "Compatability level"  change this to SQl Server 2005 (90).

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Author Comment

ID: 17862111
I found the compatability level and changed it to Sql Server 2005 (90). I restarted the the server and I still get the same message when I try to make a diagram.
LVL 18

Accepted Solution

ShogunWade earned 500 total points
ID: 17862132
ok.  now change the database owner to sa

Author Comment

ID: 17862540
Thank you ShogunWade for your help and expertise. That got it. I know enough SQL Server to get me in trouble, but I need it for my app. development.
LVL 18

Expert Comment

ID: 17902304
Youre welcome

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