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<url><loc>https://andybrownsword.co.uk/2026/05/12/t-sql-tuesday-198-change-detection/</loc><news:news><news:publication><news:name>Andy Brownsword</news:name><news:language>en-gb</news:language></news:publication><news:publication_date>2026-05-12T07:00:00+00:00</news:publication_date><news:title>T-SQL Tuesday #198 &#8211; Change Detection</news:title><news:keywords>T-SQL Tuesday, Performance, Optimisation, Performance Tuning, Change Detection, Hashing</news:keywords></news:news><image:image><image:loc>https://andybrownsword.co.uk/wp-content/uploads/2025/08/tsqltuesdaylogo.webp?w=150</image:loc></image:image></url></urlset>