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Using Multiple Active Result Sets (MARS)

SQL Server 2005 has so many new features that in my opinion if you read only BOL for a year you'd find something new every day. One of those is Multiple Active Result Sets or MARS. Multiple Active Result Sets is a new SQL Server 2005 feature that, putting it simply, allows the user to run more than one SQL batch on an open connection at the same time.

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Delivering on SQL Server

Having been at the sharp end of many successful SQL Server solutions, I believe there are some fundamental principles that all successful SQL Server installations have in common. Whilst the challenges in delivering an enterprise-scale database-intensive application can be wide and varied, there are a few basic practises that will give you the best possible chance of success.

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Question of the Day

Tracking All the Queries

I have 3 instances of a brand new long running query that are executing on a SQL Server 2025 instance. Query store is enabled. One of the queries is killed by the administrator, one is cancelled by the user. The other runs to completion. How many rows are in Query Store for this query?

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