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DBC Triggers and RI
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À
04/01/2013 13:25:23
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 9 SP2
Divers
Thread ID:
01561335
Message ID:
01561449
Vues:
62
>>>In the brief period when I used DBC/DBF I never used the RI or triggers. Didn't trust them. (Steve Sawyer once gave a great presentation on why that distrust was well-founded)
>>>
>>>Now use them even less :-) but a couple quesitons
>>>
>>>Are there any circumstances when they do no fire.
>>>
>>>For example ; Sql insert / delete from a table. Should it fire the RI code to delete children?
>>>
>>>Browse, mark record as deleted. RI fire?
>>>
>>>Manual insert / update ?
>>>
>>>TIA
>>
>>I believe in all these cases the RI triggers should fire. Did you find a case when it's not so?
>
>I'll have to retest, but I think if one browses a parent, marks a row for delete, the casade delete does not happen in children but I will have to test again.

Try re-testing after moving a record pointer.
If it's not broken, fix it until it is.


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