When you run a query, how does SQL Server estimate the number of rows? I’ll explain in this half-hour video demo using playing cards, then showing the same issues in SQL Server Management Studio.
2020-09-22
The database recovery model controls how a SQL Server database can be backed up and restored. In this article, Greg Larsen explains the three recovery models and what to think about when choosing a recovery model for a database.
2020-09-21
With insights from a recent Gartner report, Redgate’s Jamie Wallis looks at the benefits of tracking, and acting on, key metrics early in the DevOps process and how they can apply equally to database monitoring.
2020-09-21
In this article we look at how to send Slack notifications when certain events occur in a SQL Server database.
2020-09-18
Uwe Ricken continues his series on heaps. This time he demonstrates a common scenario where the query against a heap is faster than a clustered index.
2020-09-17
Companies use a Bell Curve approach to measure performance. As part of this approach they create a histogram. A histogram is a statistical concept and according to Wikipedia it is defined as a graphical distribution of the numerical data. A histogram is made of several bins and bins can be considered a range of values or a benchmark
2020-09-16
Phil Factor explains how SQL Monitor helps focus performance tuning efforts on the tables and queries where 'rogue indexes' might be a significant problem, and then how to identify both 'missing' indexes that might be beneficial to the overall workload, and those that are unused or duplicated, and so are doing more harm than good.
2020-09-16
In this article we add another module to the PowerShell monitoring process to capture wait stats for all monitored SQL Server instances.
2020-09-15
Discover the future of DevOps! Join Microsoft MVP Kendra Little to see Redgate's recent innovations in action and give you a picture of where Database DevOps is going, and why.
2020-09-14
Robert Sheldon wraps up his series on storage by discussing the latest storage innovation and ideas.
2020-09-14
By DataOnWheels
The T-SQL Tuesday topic this month comes James Serra. What career risks have you...
This T-SQL Tuesday is hosted by the one and only James Serra – literally...
By Steve Jones
This month we have a new host, James Serra. I’ve been trying to find...
Comments posted to this topic are about the item OPENQUERY Flexibility
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Comments posted to this topic are about the item Going Native with Fabric Spark...
Which of these are valid OPENQUERY() uses?
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