what are indexes..how many types of index's are there and
what are they?
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Answer Posted / rudrab123
An index is a listing of keywords accompanied by the
information of location of the subject.
in a SQL statement, if there is no Where clause then there
is no index.
In Oracle 8i,
there are 4 types of indexes .They are:-
1.B-Tree Index
2.Bitmap Index
3.Unique index
4.Function based index.
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