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what is index? I need exact defination? how will create a
secondary index?
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Answer Posted / lokesh
By using Index you can search a table for data records
which will satisfy certain search criteria .Using index
will speed up the search .An index can be considered a copy
of the DB table that has been reduced to certain fields.
This copy is always in sorted form. Sorting provides faster
access of the data records of the table.
There are 2 types :
1) Primary index
2) Secondary index
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