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Composite primary keys
Message
De
01/12/2004 10:57:39
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivie
 
 
À
01/12/2004 10:50:20
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00966059
Message ID:
00966113
Vues:
8
>>On the other hand, relationships between tables will be a lot simpler if you store the Primary key in a single field.
>
>I may be biased, but I like working with composite keys. In your example, how do you established the foreign keys once you have merged two fields into one ?

Just as with a composite key: with the REPLACE command. With a single field, you need a single REPLACE command instead of two.

>But I am very happy with your BINTOC solution, which according to my test indeed preserves the order.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
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