Clustered index in SQL Server 2012

5 pts.
Tags:
Clustered Index
SQL Server
SQL Server 2012
A clustered index is created automatically in SQLserver 2012 while creating a table with primary key. The index is created on the primary key field. My queries which are not using the primary key for search are costing 100% on clustered index scan. Should I create covered index for each and every query or what is the best way to handle this.

Software/Hardware used:
SQL server 2012

Answer Wiki

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If you are searching a table based on a column which isn’t the clustered index key columns then you’ll need to create a non-clustered index for each query so that it performs well.

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