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null values in an indexed column???

439412Aug 29 2005 — edited Aug 29 2005

Hi,
can indexed columns have null values??? is there any special case where in an indexed coulmn can have null values???

then can anyone explain me about the difference between a bitmap index and an ordinary index, any special advantage? and hos is an bitmap index created???

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Locked on Sep 26 2005

Added on Aug 29 2005

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