working with multiple database
We made a database in Access97 and are programing through VB6.
our first version of the database we have send to our client's and
now we made some changes to our database and those guys have already entered
some data in it now i want to make both the database similar and we have
around seven clients so what should i do in order to make a master database
out of all seven and also
send them the latest database.how do i work with multiple database like this
can some one explain me
Re: working with multiple database
What I have done is use a 'model' database which is updated then distributed
to customers with each new version of the software.
The model database contains the date/time it was created in a control table
record. Each time the user runs the application it loads the control record
from the model and if the date/time is different than their database's
date/time I dynamically update the user's database.
This involves iterating thru the model comparing all tables and fields,
queries and relationships. For example, if a new table is provided then I
add the table with all its fields. If a field is missing then I add the new
field. If any query is missing then I add it. And lastly I look at the
relationships and update them if necessary. It takes about 15 to 30 seconds
to do the update on a pretty large database - 100 tables, 250 queries. After
making all updates the date/time found in the model is stored in the user's
database - so the update is not performed again.
In the update code I usually have special situations. For example some new
field needs to populated. This is a good place to perform that task. The
step is only performed once.
If you are interested I'd be happy to write the update routines for you
charging my standard fee...
"rakeshjani" <firstname.lastname@example.org> wrote in message
> We made a database in Access97 and are programing through VB6.
> our first version of the database we have send to our client's and
> now we made some changes to our database and those guys have already
> some data in it now i want to make both the database similar and we have
> around seven clients so what should i do in order to make a master
> out of all seven and also
> send them the latest database.how do i work with multiple database like
> can some one explain me
Top DevX Stories
Easy Web Services with SQL Server 2005 HTTP Endpoints
JavaOne 2005: Java Platform Roadmap Focuses on Ease of Development, Sun Focuses on the "Free" in F.O.S.S.
Wed Yourself to UML with the Power of Associations
Microsoft to Add AJAX Capabilities to ASP.NET
IBM's Cloudscape Versus MySQL