indexes in sql server 08

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SQL-Server-2008R2

someone asked a question from indexes that i have a table contains huge records and its user interface , i m having grid and having searching criteria and paging is there . Then , he asked , how many indexes i need to make on that table in the database ? if i m creating non clustered , then how many i need to make and why ?

Posted 1-Sep-14 1:37am

Naina2

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2 solutions

Solution 2

Hi,

Check this ...

Clustered and Non-Clustered Index in SQL 2005[^]

Hope this will help you.

Cheers

Posted 1-Sep-14 2:53am

Magic Wonder

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a_noob_frver · Accepted Answer · 2014-09-01T02:41:00

It basically depends on how the table is being used.Generally indexes should be present on columns that have one or more of these features :

1.) Frequently used in the search criteria
2.) Used to join other tables
3.) Used as foreign key fields
4.) Of having high selectivity (column which returns a low percentage (0-5%) of rows from a total number of rows on a particular value)

5.) Used in the ORDER BY clause

Hope this helps