External Article

SQL Monitor Custom Metric: Possible Duplicate Indexes

When a table has multiple indexes defined on the same columns, it produces duplicate indexes that waste space and have a negative impact on performance. This metric measures the number of possible duplicate indexes per database above a set threshold. You can then consider dropping the indexes and reverse the change.

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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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