Initially question was asked to mention the types of indexes.
Then asked about BITMAP INDEX and B-Tree Index
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Answer Posted / slokh
Bitmap index is a type of index created on the basis of the
column having low cardinality like. index created on the
column like 'gender' etc.
B-tree or binary index is created on the column contains
wide range of values like 'name' column.
note:- more than one index is created on the table.
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