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10/18/25
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>>> - Don't use SELECT * > >> > >> What's the rationale for this? In this case we actually do want all > >> the columns. Is there a performance issue with '*' vs putting all the > >> column names in the query explicitly? > > > > If not a performance gain, this is a least good practice. And I'm > pretty sure this *is* a performance difference, at least on some > RDBMs.
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