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Avoid using “SELECT DISTINCT”, use DELETE-ADJACENT

 

[/vc_column_text][vc_column_text pl=”0″ pr=”0″ pt=”0″ pb=”0″] This code insight ensures for performance reason, if some of the fields are not part of an index, then it is often better to avoid using SELECT DISTINCT.
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Why you should care

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Business Impacts

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CAST recommendations

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References

https://technet.microsoft.com/en-us/library/ms187009(v=sql.105).aspx[/vc_column_text][/vc_column_inner][/vc_row_inner][vc_row_inner][vc_column_inner width=”1/1″][vc_single_image image=”5362″ img_link_large=”” img_link_target=”_self” img_size=”full” alignment=”none”][vc_column_text pl=”0″ pr=”0″ pt=”0″ pb=”0″]

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