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10 Things to Avoid in VFP Development
Message
 
À
31/12/1999 11:02:41
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00310318
Message ID:
00311001
Vues:
45
>>Do not confuse a primary key with a primary index, they are two different things.
>
>But VFP returns the PI when you request the PK. So you might as well design them to be one in the same.

With multiple indexes (or TAGs), each index (or Tag) would have a primary key, right? The primary key is the first "field" in the index key (example CUST+INVOICE, CUST is primary key). The same table, could have a different primary key for each index! Or, it could have the same primary key for a variety of secondary keys (or "sorts").

I'm curious - are most VFP developers using VFPs native DBMS, or - are they going to SQL? Would it be to MS's advantage to drop VFP so that every commercial app we develop (and distribute) requires the enduser to buy a copy SQL 7? Right now MS gets nothing when a VFP native is distributed.

Terry
Imagination is more important than knowledge
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