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shadows of echoes of memories of songs
Working on the SQL
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From: vatine Date: August 18th, 2008 07:29 pm (UTC) (Link)
I've always interpreted "duplicating data BAD" as meaning that it's too damned easy ending up with inconsistent data sets if you have data duplicated everywhere. If you need to duplicate data to get sufficient speed, by all means do this, but...
rysmiel From: rysmiel Date: August 18th, 2008 07:51 pm (UTC) (Link)
This is what table constraints, integrity checks, and well-defined population procedures are for.
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