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MDB Update in the client with ADO
Bid Request Id: 41480
Bookmark in my 'To Do' list
Posted by: LGI (0 ratings)
Non-action Ratio: None - 0%
Posted: Dec 29, 2002
10:10:49 AM EDT
Bidding Closes: Jan 3, 2003
10:12:20 AM EDT
Viewed (by coders): 346 times
Deadline: 1/8/2003
100% of work was accepted by buyer. Coder account has been credited.
Max Accepted Bid: Bidding is closed
Project Type: Small Business Project: $100 (USD) +
Bidding Type: Open Auction
Categories: Database, Language Specific, Visual Basic, Access
Enter chat room for this bid request
(0 active users at Mar 27, 2003 3:01:53 AM EDT)


I need a routine to update a MDB with the new MDB structure in ADO.

I have a MDB in the client.

When they update the program.exe the program detect the new version off the aplication and make the changes in the current mdb from one blank mdb structure or from one array or code of the new estructure.

I need the actual mdb update and all the current data equal. Evidently If I don't delete fields, etc.

If one field change of type or lenght the new estructure preserve the information like it's posible.

My application is in VB6 & MDB Access 2000.

I work with Microsoft Activex Data Object 2.5 Library

One Coder try it to make it like this with ADOX but the problem are the relationship's.

I thing is better this system :

1º Whe send a empty mdb with the new strucuture (all tables, indexes, relations and one special table called version with only one field with the number of exe version)

2º The routine verify the version off the table version in customer.mdb, if is not equal than the exe
the update begin.

3º The routine copy the empty.mdb to update.mdb

3º The routine apend all the data from current.mdb to update.mdb

3º Rename the current.mdb with currentDATETIME.mdb
4º Rename the update.mdb to current.mdb

Ok it's simple but I make this consideration's :

1º I think the routine can automatic append the table's from customer that they are in empty.mdb

2º The routine need to control the relationship to make the append's or inserts ?

3º What need the routine to insert records preservating the autonumeric fields ?

4º Is need anything control to ensure the correct update? foreign keys, etc

5º What happend with the international fields like money?

I think this is all I need, any suggestions?

1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.

2) Complete ownership and distribution copyrights to all work purchased.


Must be 100% finished and received by buyer on:
Jan 8, 2003 EDT
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Name   Bid Amount 
Date   Coder Rating  
This bid was accepted by the buyer!
(13 ratings)
in Evora, Portugal
Bid id: 449,097
$150 (USD) Dec 29, 2002
12:23:45 PM EDT
if you keep all the filds and tables names of the oldest DB in the new one is not going to be a problem do the update.(you can add new filds and tables in the update DB but the old ones have to be presents, keep in mind that is just the names you can change the type and format too)
I think is very easy to do what you ask. if you change the type of filds the data that we put there will be formated automatically to the fild format. how about the relations you ask, simple, if the oldest DB don't have any problem with the data the new one will not have too, the only problem is the autonumeric fields that they have to start again from 0, because the access data base don't let the user to change them.

i know my bid is a litle expensive but if you chose me you can count with a work well done and fast.
Looking forward for a positive reply.
Tks (João Gomes).
  See 6 private reply(ies)
to/from Joao.

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