Denormalising data is a bad idea if you even want meanful data back out. I would add a table called file_types and use that as a primary key for a field added in your main table, for each file type you have create another table that holds information specific to that type. then just join to the appropriate tables based on the type indicated in the main table. This also give you a nice way to be able to filter based on file type without having to meddle with extensions etc

In reply to Re^2: What kind of database should I use? by Anonymous Monk
in thread What kind of database should I use? by bart

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