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SSRS Duplicate DSN

Posted on 2014-01-16
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Last Modified: 2014-02-05
I have deployed reports for an ERP application, For a handful of reports I am getting this message about bad DSN. I discovered the reason is because for some reason a second DSN exists for the report when there should only be one. I tried redeploying the reports but that did not help. If you look at the attached screenshot, the DSN called dsGP10PM should not be there. How do I remove it for just this report? This is SQL Server 2008 R2.
Duplicate DSN
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Question by:rwheeler23
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Expert Comment

by:ValentinoV
ID: 39787708
Looks like your report is not connected to the right data source.  I assume you're using shared data sources, right?

Now, this can be fixed through the Report Manager.  Open the dropdown menu on your report and select Manage.  This gives you the report's properties.  Open the Data Sources page.  The radio button next to A shared data source should be activated.  Use the Browse button and select the right data source for your report.  That should solve the issue.
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Author Comment

by:rwheeler23
ID: 39788176
These report do have a shared datasource but the problem is under manage it lists two shared datasources. That is the problem. It has the one it is supposed to use and this other "dsGP10PM" that I have no idea from where it is coming. There is no delete or remove button. Here is a screenshot of what I mean. How do I get rid of it?Duplicate DSN Screenshot
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Expert Comment

by:ValentinoV
ID: 39788212
If that screen shows two data sources it means that the report has got those two data sources defined.  So to remove one you should open the RDL in an SSRS project (BIDS) and remove it from there, then redeploy.  Or point both to the same shared data source as you did, AFAIK that should work too? (though it's not a best practice)
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Author Comment

by:rwheeler23
ID: 39788224
Thanks. I will need to check with Microsoft then as this report is part of an ERP package so I have no idea where the rdl is kept. These reports are all deployed via their control panel.
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Expert Comment

by:ValentinoV
ID: 39788320
Ow I see.  Is the report operating as expected with the data sources set as they are?  Because in that case I wouldn't bother too much (me personally)...

You can always download the RDLs from the Report Manager (using the dropdown menu on a report) but if they ship with a third-party product then changing them is probably not the best way forward...
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Author Comment

by:rwheeler23
ID: 39788343
The reports do not work. They are trying to use the dsGP10PM data source which is pointing to god knows what. I need that data source gone. I have tried redeploying them but that did not work. I am reluctant to open a case with Microsoft because they will charge $259 for the call.
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Expert Comment

by:ValentinoV
ID: 39788421
According to your screenshot both data sources in the report are pointing to the same data source on the server: Data Sources\GPPROD

To test if the data source is working, open its properties in Report Manager and click the Test Connection button. This way you can also check if it's configured as expected...
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Author Comment

by:rwheeler23
ID: 39788463
I wish I could do that. The Test Connection button is always dim.
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ValentinoV earned 2000 total points
ID: 39799308
Ow, that's weird. Are you sure your user has got admin rights on SSRS?

Perhaps something else worth trying: delete one of the reports through the Report Manager and then deploy it again.  I've solved strange parameter issues this way in the past...
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Author Comment

by:rwheeler23
ID: 39799659
That is a good thought. I will try to delete it first and then deploy it again and let you know. I even contacted Microsoft and they do not know what it is or how to get rid of it.
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