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Cascading Referential Integrity
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10/02/2011 08:54:34
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Versions des environnements
Visual FoxPro:
VFP 9 SP1
Divers
Thread ID:
01499588
Message ID:
01499594
Vues:
71
>Hi,
>
>Up to now I have always used RYO approach in updating foreign keys on the change of the parent key field. But I want to see if it is possible to do it in VFP just like you do it in SQL Server where you set constraints to update foreign keys on update and delete. My questions are:
>1. Can it be done in VFP and is it reliable/stable
>2. If 1. is Yes, where do you start? I want to build a rule for an update of one of the parent fields, as a test and see how it works.
>
>I appreciate any suggestions. TIA.


>1. Can it be done in VFP and is it reliable/stable
yes, it's wrapped in a transaction

>2. If 1. is Yes, where do you start? I want to build a rule for an update of one of the parent fields, as a test and see how it works.

modi database
rightclick - Edit referential integrity
Gregory
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