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andre
Constraint Violating Yak Guru
259 Posts |
 Posted - 2001-03-27 : 11:22:34
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| I have several Excel spreadsheets that need to be turned into a relational database. It is composed of different types of motors. The fields each motor will have depends on the type of motor.My question is should I use 1 large table for all motors and have NULLs as values for the fields that don't apply to a certain record or should I break the data down into multiple tables? Does having NULLs as values for fields that don't apply to a certain record violate any rules of normalization? |
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NULLs