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Believe it or not, I was not the first one to down load it. I have been working on other projects and have not yet taken the time to install it--but it looks like fate smiled upon me :)
If you were the first to download version 18, would you please re-download? Since that download, I found and fixed a bug in the code that re-glues connections made to the (nested) entity types. My apologies for this, I thought it would be better to go ahead and fix this and re-upload as version 18, rather than make a new ...
Please note that version 18 of ORM2_Draw2 is up and available:
Here is an example of an equality constraint that I have taken from page 225 of Terry's book.
I would have thought that this constraint would generate some additional DDL but my tests show that the DDL is the same with and without the constraint. I have asked Matt to comment.
I'd like to know if an equality constraint in an ORM model has any effect over its relational view or if it only has an informational role.
I have a model which I've attached to this post. In the Asset_Movement table I'm getting two columns:
but these columns ...
Regarding " What might be helpful"?
It seems to me that it would be useful to add a "default value" field in the property sheet of each column of the relational model.
That way, you could set the default values during the modeling phase, rather than waiting until the physical DB had been generated.
Of course the ...
You made me laugh. I wasn't trying to overdo it, but I think I failed.
I think the fundamental issue is that on the conceptual side--which is just a first-order logic representation of the domain--there are only notions of true or false. The default value question issue is a question for the logical schema, not the conceptual ...
Wow – big answer. For
now I will go forward knowing simply that the answer is ‘No’.
Thank-you for the response!
If you change the DataType on a value type from "Text: Variable Length" with a DataTypeLength specified e.g. "50" to "Raw Data: Picture" then in Relational View it will show varbinary(50) instead of varbinary. I assume this would be the same with other DataTypes and also with entity types also.
I've attached a ...
There is currently no setting for doing this in NORMA.
There are certainly some things that could be applied in this area, but the fundamental problem is that it is not always clear how a 'default value' on all types of conceptual fact types actually means. When you're talking about a default value in a relation--such as a ...