What is the diff b/w btree index and bitmap index
A B-Tree index stores the index value and the physical rowid of the row. The index values are arranged in the form of leaves. A B-Tree index is used most when the cardinality is high.
A Bitmap index ...
For example suppose we have using many distinct value for particular column in that time using b-tree index.
Bitmap indexes which is used low cardinaties values .
For example suppose we have using gender or flag column in that time using bitmap index .
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