[V4RB] Opening modified databases

[Ruslan Zasukhin]

on 11/28/03 3:39 PM, jda at jda at his.com wrote:

Hi Jon,

> Hi Ruslan, a question.
> 
> I'm updating database files to a new version (modifying some tables),
> and the schema is updated as well. I have a field
> "MinumumVersionRequired" so that older applications that try to open
> the modified databases can tell the user "This database is too new to
> be opened by this version" (or words to that effect).
> 
> The problem is that once I've modified the tables, older versions of
> the application can't open the database at all!  I don't get an error
> message, just
> 
>    result = db.open(theFolderItem)
> 
> fails.
> 
> Therefore, the older version of the application can't access the
> MinimumVersionRequired field.
> 
> Am I missing something?

Do you try open modified db as MyDatabase or Vdatabase ?

You will be able open it only as Vdatabase.
But I think it is annoying open it as VDatabase, check, then close and
reopen as myDatabase.

Hmm, something must be changed...

I think must be 

    db.GetVersion()

For db files without opening.




-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
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e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

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