SQL Server execution-plans-3 book cover

Free eBook: SQL Server Execution Plans, Third Edition

If a query is performing poorly, and you can't understand why, then that query's execution plan will tell you not only what data set is coming back, but also what SQL Server did, and in what order, to get that data. It will reveal how the data was retrieved, and from which tables and indexes, what types of joins were used, at what point filtering, sorting and aggregation occurred, and a whole lot more. These details will often highlight the likely source of any problem.

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Permissions Removal When Changing Object Schema

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When the schema of an object is changed, SQL Server wipes out the previous...

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By sgharlow

Comments posted to this topic are about the item SSRS Is Dead. Here Are...

The Distance Metric

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The Distance Metric

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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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