I have a fairly large Oracle DB - and when I try to create a model from that database even by selecting just one very simple table - the model fails to generate with the following error
An exception of type 'Microsoft.Data.Entity.Design.VisualStudio.ModelWizard.Engine.ModelBuilderEngine+GenerateSSDLException' occurred while attempting to update from the database. The exception message is: 'Unable to cast object of type 'System.DBNull' to type 'System.String'
Please note that this error is the same whether I am trying to update the model or just generate it brand-new the first time. The designer quits and leaves me with an empty model. I can't find any log file that would give me more detail on why this is happening.
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Error when trying to create a model
Error when trying to create a model
Last edited by HintonBR on Tue 15 Feb 2011 11:54, edited 1 time in total.
Last edited by HintonBR on Tue 15 Feb 2011 11:55, edited 1 time in total.
I suppose that the discussed problem is identical to the one associated with EDMGen:
http://www.devart.com/forums/viewtopic.php?t=13775
http://www.devart.com/forums/viewtopic.php?t=13775
I will run the query for both EdmGen and for the VS Integration and send them to you - I am somewhat skeptical that they are the same problem, because the errors I am getting back are quite different, but I will pass on the results I get from the SQL query that you want me to execute for you to analyze.
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