[mso] Re: Database Integrity

Does this becaome a problem if the school decides to RENUMBER the vehicles?

-Jim-


Carol Parent wrote:

> Hello Peter,
>
> I am using MS Access 2000
> In Design Phase (paper/pencil) and some "playing" with tables/queries with
> dummy data
> What I am wanting to "see" are different options I may have to protecting
> the integrity of the relationships (data) but enable the addition of new
> vehicles using same identifying label.
>
> I really think the VIN # may be the solution (and actually a value added
> feature).
> Another option may be to combine the vehicle # with the DateAdded (to school
> fleet of vehicles) as the Primary Key.
>
> Part of what I am pleased with is that I actually recognized that this may
> cause future problems before I put a lot of computer time in.
>
> Best regards,
>
> Carol Parent
> info@xxxxxxxxxxxxxxx
> http://www.carolparent.net
>
> I finally got it all together...
> I just wish I could remember where I set it down.
>
> -----Original Message-----
> From: mso-bounce@xxxxxxxxxxxxx [mailto:mso-bounce@xxxxxxxxxxxxx]On
> Behalf Of Peter Chiavaro
> Sent: Monday, April 29, 2002 12:38 PM
> To: mso@xxxxxxxxxxxxx
> Subject: [mso] Re: Database Integrity
>
> Hi Carol,
>
>    I hope we can assume this is an MS Access database?
>
> What Version of Access are you using? And how far along are you in the =
> data that has been entered? In other words, is the database still in its =
> design mode or do you already have data in the tables?
>
> This is tuffy, but in order to help you better, I've got to know what =
> you've done so far.
>
> The only way I know of to get around the problem is to create a table =
> that might look something like this:
>
> VehicleID (autonumber)
> SchoolVehicleID (indexed - Duplicates ok)
> Make
> Model
> Actual Serial Number
> Color
> (and everything else the car CAN ONLY HAVE ONE OF)
>
> For example, a car can only be one Make. It CANNOT be a Chevy and a =
> Dodge at the same time. It can only have 1 VIN, and it can only be one =
> model.
>
> This table will be at the top level. Every time the school buys a new =
> car, you would add it to this table.
>
> >From here on, every time you add a vehicle it will have a new VehicleID, =
> but you can assign the same SchoolVehicleID.
>
> Cheezz,,, I could lay out these tables for you in 2 minutes, but it =
> would take me an hour's worth of typing to explain it.
>
> If you email me at my address below, I'll return a sample layout. Just =
> let me know what version of Access you are using, and if you already =
> have data in the tables. If you already have data, then the procedure =
> might be a little tricky. If you're just starting to build the =
> foundation, then it's a piece a cake.
>
> I am by no means an Access wizard, but stuff like this I can handle with =
> ease.
>
> Peter C.
> Stuart, Florida
> Kp@xxxxxxxx
> -_-_-_-_-_-_-_-_-
> ICQ =3D 412633
>
> -----Original Message-----
> From: mso-bounce@xxxxxxxxxxxxx [mailto:mso-bounce@xxxxxxxxxxxxx]On =
> Behalf Of Carol Parent
> Sent: Monday, April 29, 2002 12:34 PM
> To: mso@xxxxxxxxxxxxx
> Subject: [mso] Database Integrity
>
> Hello,
>
> I have a question concerning Database Integrity.  I hope this is an
> applicable topic.  If not please advise.
>
> I am creating a database of Vehicles/Activities/MilesDriven/FuelUsed for =
> our
> local school system.  I need to be able to track which vehicle goes on =
> what
> activity and track the amount of miles being racked up on the vehicles.
>
> Now that is not a big deal BUT when the school purchases a NEW vehicle =
> they
> replace an old vehicle giving it the same number.  How can I protect the
> data integrity (i.e., relationship between =
> vehicles/milesdriven/activity)
> but use the SAME NUMBER to identify a different vehicle?
>
> I am not very proficient with databases so am taking this very slowly as =
> to
> hopefully not muck it up to much.
>
> Thanks very much for any advice/responses you may offer.
>
> Best regards,
>
> Carol Parent
> info@xxxxxxxxxxxxxxx
> http://www.carolparent.net
>
> I finally got it all together...
> I just wish I could remember where I set it down.
>
> -----Original Message-----
> From: mso-bounce@xxxxxxxxxxxxx [mailto:mso-bounce@xxxxxxxxxxxxx]On
> Behalf Of James LaBorde
> Sent: Monday, April 29, 2002 11:24 AM
> To: 'mso@xxxxxxxxxxxxx'
> Subject: [mso] Re: New to the List- Happy to be here. :VSMail MX2
>
> Peter,
>
> Good to see another Access person here.
>
> James
>
> -----Original Message-----
> From: Peter Chiavaro [mailto:kp@xxxxxxxx]
> Sent: Saturday, April 27, 2002 8:45 AM
> To: mso@xxxxxxxxxxxxx
> Subject: [mso] New to the List- Happy to be here. :VSMail MX2
>
> Hello Fellow Office Dweebs,
>
> This is my first post. (Hi Linda, Hi Dian).
>
> I am proficient with MS Access. I don't write code, but I can do
> just about everything else. Perhaps I can answer some of the basic
> MS Access questions / problems.
>
> More Later.
>
> Peter C.
> Equine Cooling Technician
> Alex Campbell Racing Stables
> Payson Park
> Indiantown, FL
>
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--
-Jim-
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