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Synchronize tables
Message
De
25/04/2002 10:59:23
Dave Emerson
Dc Emerson Consult8Ng, Inc
Destin, Floride, États-Unis
 
 
À
25/04/2002 07:03:22
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivie
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00648867
Message ID:
00649146
Vues:
20
>>I have a situation in which I want to be able to synchronize two tables which resides in two differnt databases: one a public database and one a private database. The public database is used on a web site, while the private database is used in-house. Either or both may be updated, records deleted, and/or appended to daily by the respective users.
>>
>>My problem concerns how to synchronize the two tables.
>>
>>I would greatly appreciate any ideas.
>>
>>Dave Emerson
>
>You could use a timestamp (type: DateTime) field on each table. Every day, copy records back and forth that have the timestamp later than a certain value (the time of the last update). For updating records, check if a record with same primary key exists on the other side.
>
>Problems might arise when two users modify the same record (on both sides).
>
>Hilmar.

I had actually thought of using a timestamp, but now am leaning toward a change flag which would be reset by the synchronizing program.

Thanks for your input.

Dave
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