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SQL Server: Order of Operators
Something which may seem basic, but in many SQL statements I analyse for performance optimisation, the same mistakes are recurring. When a WHERE clause is used the actual operator used will influence the query speed. That is not to say , every statement has the option of using the optimal operator.
It's worth keeping in mind the order of the operator , the order starts with the fastest performer.
=
<,<=,>,>=
LIKE
<>
 

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Jack Vamvas is a SQL Server Consultant. To contact him about this article , or any issues related to SQL Server register on www.ciquery.com and post a question.
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