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New Custom Metric: Long Running Job

SQL Monitor’s Job duration unusual alert is a powerful tool for keeping track of most jobs in your SQL Server environment. It works by comparing the running time of any job instance against the median for that job, and identifying when a variation in the job duration could hint at a performance problem. However, if your environment contains big jobs whose durations vary by several orders of magnitudes, it can be tricky to specify what kind of variation is expected and what would be unusual. For these cases, it is possible to go beyond the functionality of the built-in alert with a custom metric.

SQLServerCentral Editorial

Data Darwinism

Data could be the way that more decisions are made, separating the competent from the incompetent in the future. Steve Jones isn't sure this is the best way to make decisions if we don't include a human element in the decision process.

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Join Reordering and Bushy Plans

Normally, the query Optimiser won't consider 'bushy' plans, where both operands to a join operator could be intermediate results from other joins. This means that it won't produce good query plans for some types of query. Hints, by themselves won't do it. More powerful magic is required.

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Question of the Day

Distance Metric Algorithms

What are the distance metric algorithms that can be used in VECTOR_DISTANCE()?

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