Answer / malathy

Shankar,
Only primary indexes are created by Default.
secondary indexes are created by the user, it can be
created in SE11.

Answer / balaji

index is used to speed up the selectin of data from tables

secondary index is created in addition to the primary index
of table

Answer / 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

Answer / pooja

How to create secondary index? Explain step wise procedure.

Answer / g.shankar

for fast retrieval of data from database we need index..
2 types of index r der-
1-primary index
2-secondary index
secondary index is created by default..

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