> I'm creating a series of database diagrams for a database that has
> ~ 200 tables. The tables are segmented by module, so instead of
> having one massive diagram I am creating a diagram per module.
> All I'm doing is creating a new diagram, selecting all the tables
> that belong to a module, and letting the software create the
> diagram. I do make some format/layout changes to make the
> diagram easier to read, but at no time am I making any structural
> changes to the table.
>
> For three of the four modules this approach has worked perfectly.
> However, there is one set of tables that the tool thinks has been
> altered, and it insists on writing the tables back to the database
> before it will save it. The first time this happened I just said "No"
> to any writing/saving and started over from scratch (I assumed I
> had accidentally made a change to a table). The next time I added
> all the module's tables, I simply moved one table two or three
> inches to the left, and then tried to save the daigram (having 100%
> confidence there were no accidental structural changes). Once
> again, it wanted to write a few of the tables back to the database
> before saving.
>
> I have no idea why it thinks any structural changes occured to the
> referenced tables. I certainly didn't make any, and on the rare
> occasion I have accidentally made a change, I was able to
> successfully start over by not writing/saving the change and
> closing/opening the diagram.
>
> Can anyone let me know what possible changes could have been
> applied to a table(s) outside the diagram tool, that could affect the
> diagram tool and make it think it needs to write the tables to the database
> before saving?
>
> Thanks
>