Normailization Of Periodic Data

Mar 20, 2008

Hi everyone,

I have/had a situation very similar to another recent thread, “Table Setup Help... (http://www.access-programmers.co.uk/forums/showthread.php?t=145759)”, but I read the thread and had a go at normalizing my analogous table. My old table, Fund, looked like this:

________________
|Fund |
|================|
|* Id |
| AssetClassId |
| Fund |
| Symbol |
| Price20070131 |
| Price20070228 |
| Price20070331 |
| Price20070430 |
| ... |
|________________|

(AssetClassId is a foreign key for another relationship.)

I didn’t like it much, but I thought it was the only way to go. The other thread helped me a lot and I came-up with two tables, Fund and Price, instead:
______________
________________ |Price |
|Fund | |=============|
|================| | *Id |
| *Id | 1 ------- ∞ | FundId |
| AssetClassId | | Price |
| Fund | | PriceDate |
| Symbol | |_____________|
|________________|

Do you agree that this is normalized and is the correct way to go? Like the other thread mentions, if I have, say, fifty funds, I will have to add fifty new records to the Price table every month or quarter (or however frequently I decide to keep data), but hopefully a well-made form can make that pretty easy. (The long-term goal is to have it downloaded automatically with VBA, but I have no idea how to do that yet,)

I have attached screenshots of the tables as an alternative to my ASCII art :p. I wanted to share this and also get opinions on whether this is good or not.

Thank you!
Ryan


PS
Should I add a post to the other thread linking to this one if this one works-out?

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