Niko Neugebauer 7/18/2026

The Odyssey of Hekaton (SQL Server 2025)

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This article discusses the author's long history with In-Memory OLTP (Hekaton) in SQL Server and the introduction of functionality in SQL Server 2025 to remove the In-Memory Filegroup from a database. The author provides a step-by-step technical guide, including T-SQL examples for adding a Hekaton filegroup, creating a memory-optimized table, and attempting to remove the filegroup. The post reflects on the feature's potential and its eventual decline, offering insights for database administrators and developers working with SQL Server 2025 migration and cleanup.

The Odyssey of Hekaton (SQL Server 2025)

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