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***Logical Delete Record
Message
De
03/03/1997 15:13:13
 
 
À
03/03/1997 08:11:20
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00022604
Message ID:
00022725
Vues:
43
>1) Why isn't there at least an OPTION in VFP to have DELETED primary or >candidate keys treated as non-existent records which can be overwritten >according to the command presently being attempted? because if you RECALL the record the uniqueness will be violated - if you want to recycle deleted keys you have to implement it yourself - the best strategy IMHO is to have primery keys generated automatically, so there will not be a connection to the data or problem with skipped values etc. >2) Why is this simple fact NOT mentioned at all in the discussions >regarding primary keys or candidate keys? [ each of us has to learn this >for ourselves, the hard way] as Nike says - just do it - you can write an article on this , and we'll consider it for the VFUG newsletter (g) Arnon
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