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Optimized Locking in SQL Server 2025: Fewer Locks, Less Blocking, and the Cases It Cannot Fix

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Reproduce traditional row-lock accumulation and writer blocking, then see how SQL Server 2025 uses transaction ID locking and Lock After Qualification to improve concurrency—and where hints, isolation levels, and query shapes limit the benefit.

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2026-09-23

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SQL Server Vector Support II

With regard to SQL Server 2025's Vector support, what is an embedding?

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