Bit Mapped Indexes

This is a discussion on Bit Mapped Indexes within the Data Warehousing forums, part of the ERP category; What is Bit Mapped Indexes Bit Map Indexing is a technique commonly used in relational databases where the application uses ...

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Bit Mapped Indexes

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02-07-2008, 04:00 AM

lokeshm

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Join Date: Apr 2005

Posts: 716

Bit Mapped Indexes

What is Bit Mapped Indexes

Bit Map Indexing is a technique commonly used in relational databases
where the application uses binary coding in representing data. This
technique was originally used for low cardinality data but recent
applications like the Sybase IQ have used this technique efficiently.
The word cardinality is an SQL term to refer to the uniqueness of a
data value

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