Re: Need help on terminologies...
Date: Sat, 17 Nov 2001 11:28:23 GMT
Message-ID: <3bf64848.105475250_at_nntp.interaccess.com>
On Sat, 17 Nov 2001 07:53:24 GMT, topmind_at_technologist.com (Topmind)
wrote:
>
>> (f) Primary Keys
>
>The keys to the house
>
Bzzt. Wrong!
In apartments and condos you have one set
of keys that open common areas: front doors,
storage areas, laundry rooms etc; and one set
that open tenant specific areas: your private
part of the storage area, where you keep your
The later are are primary keys.
>> (g) Composite Primary Key
>
>If they make them out of zinc + iron
>
Hmm. No. You have these when you need more
than one key to open an area. For example
when your door has two locks. It is especially
relevant for those keys which are really two keys.
One side opens lock one. Turn it around and the other
side opens another lock.
>> (h) Foreign Keys
>
>If you put your pants on in a hurry
>after visiting Commander Data's house,
>you might find these
More like Spock than Data.
BTW what do keys have to do with objects? Received on Sat Nov 17 2001 - 12:28:23 CET