You should look to normalization for each of your catagories. For instance, the kids/grown_ups split dupes information in the birth date field of each. Kids are constantly filtering into the grown-up side of the ledger. Unifying that classification to just Persons will let you select by whatever age range is desired, without maintainance of redundant categories.

After Compline,
Zaxo

In reply to Re: database design issue: one big table vs hundred of smaller tables by Zaxo
in thread database design issue: one big table vs hundred of smaller tables by AltBlue

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