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Optimisation as per execution plan
Message
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Indexation
Versions des environnements
SQL Server:
SQL Server 2008
Application:
Web
Divers
Thread ID:
01526170
Message ID:
01526183
Vues:
52
>>>The execution plan indicates a Key Loookup 66% process on the object which is my primary key. However, the output list shows 8 fields. Is this 66% that CPU intensive because I did not include those 8 fields in the index definition?
>>
>>Nope,
>>Fields you include and/or exclude in the query result have no reflection on the execution plan.
>>But these fields which you use in WHERE clause or in JOINs have.
>
>Boris,
>
>That's not exactly true.
>
>Check this blog post
>http://blogs.lessthandot.com/index.php/DataMgmt/DataDesign/sql-server-covering-indexes

Thanks!
Against Stupidity the Gods themselves Contend in Vain - Johann Christoph Friedrich von Schiller
The only thing normal about database guys is their tables.
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