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help / color / mirror / Atom feedFrom: Thiemo Kellner <[email protected]>
To: [email protected]
Subject: Re: Top -N Query performance issue and high CPU usage
Date: Thu, 5 Feb 2026 12:32:03 +0100
Message-ID: <[email protected]> (raw)
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A nested loop is not bad per se, at least in Oracle. It depends on the data. If the number of rows participating in the join table are very unequal, the NL is the more efficient join. I would presume that every join of a fact table with a dimension table belongs to that category.
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