What is the exact difference between date_part() and extract functions in netezza?
difference between extract and date_part
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ScottMcG
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In Netezza date_part and extract are equivalent functions. They provide different syntax for improved SQL compatibility, but are otherwise the same.
You can see this in the documentation here.
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difference between
date_part('week', ...)andextract(week from ...)not only but also from a performance point of view. I readextractis standard anddate_partis not. Backwards compatibility maybe justifies the existence ofdate_part