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Ninja Immutable Databases

'Immutable' databases operate under the principle that data or objects should not be modified after they are created. Once again they hold the promise of providing strong consistency combined with horizontal read scalability, and built-in caching. Are Immutable databases a new idea? Are they different in any way from the mainstream RDBMSs?

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Question of the Day

The Distance Metric

In the new VECTOR_DISTANCE() function in SQL Server 2025, the first parameter is the distance_metric. What is this?

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