What are indexes? When do you need to create Indexes?
Answer Posted / murtaza
INDEXES:
1.indexes are used for performance as well as query
optimization issues in database.
2.indexes are by default created when u create an primary or
unique index on a particular column in a table.
3.In sql server there are 2 types of indexes
1.clustered index
2.non clustered index
4.By default non clustered index are created in sql server 2005.
WHEN TO CREATE INDEXES:
1.indexes should be created on the tables which will be used
frequently.
2.it should be created on d tables which has large amount of
data.
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