[V4RB] Changing Database structure

Ruslan Zasukhin sunshine at public.kherson.ua
Sun Apr 27 10:45:20 CDT 2003


on 4/27/03 3:14 AM, Claudius Sailer at Claudius at sailer-online.de wrote:

> Hi Stan,
> 
> 
> Am Sonntag, 27.04.03 um 01:00 Uhr schrieb Stan R. Busk:
> 
>> I wonder what is the best way to convert an existing static database
>> once you add a new field to one of its tables. I guess you need to
>> write a tool that create a new file with new structure, open old file
>> with old structure and copy all data from the first to the latter. Am
>> I true? Is there a better / easier way?
> 
> I don't know whether it is easier or not. It is your decission.
> 
> I do the following:
> 
> Opening database and checking which version database is.
> 
> If databaseversion is not the actual one then calling update-method
> after update-method until the database-version is actual.
> 
> After that I give the message (information) that the database is
> updated.
> 
> thats it.
> 
> When you want to get more information or example code. tell me.

Stan, 

And note, you need open database using Vdatabase class. NOT mydatabase.

Then you check version, if needed you Update structure, and close Vdatabase
object.

Then open db as myDatabase.


-- 
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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