What Is a Cost-Based Optimizer?
When you execute a query, the database server has to figure a lot of things out. For even the simplest queries, there are usually several possible ways to get the job done.
When you execute a query, the database server has to figure a lot of things out. For even the simplest queries, there are usually several possible ways to get the job done.
In addition to trying to get better at SQL Server, Redgate Software, and all the various aspects of my job, I'm also trying to get better at this whole human interaction thing AND I'm working on trying to learn PostgreSQL much more deeply. Whew! Yeah, may not seem like a whole lot, but I assure […]
Using a list to keep track of what you should work on is only as good as the plan or goal behind it.
This tip demonstrates models for detecting the start of periods of rising or falling financial securities prices based on exponential moving averages. The demonstration is simplified because it relies on a log to keep track of time series values as well as exponential moving averages with different period lengths.
BMW have been monitoring their SQL Server estate for more than 7 years, but with evolving technology and circumstances, monitoring also needs to change and grow. Join Tony Maddonna in conversation with Redgate's James King, to discover how BMW are handling the challenges.
In this first article of the Stairway to SQL Server on Linux, learn how to set up your host server.
GE is using lots of data, and machine learning to predict when specific systems will fail by nurturing digital twins.
Big data can be risky, which is why you need great estate management. Join Matt Schmelzer, Data Systems and Automation - IT, and Jonathan Holck, IT Associate, from Artisan Partners in discussion with Microsoft MVP Grant Fritchey to learn how they implemented a successful infrastructure and what tools they need to support their growing estate.
Learn how to use IIF, Switch and Choose logical functions in SSRS reports to make your reports more dynamic and more appealing to report users.
Learn how you can perform an offline migration of a SQL Server to Azure Managed Instances or IaaS VMs.
By Steve Jones
“Don’t aim to have others like you; aim to have them respect you.” –...
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In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 3;See possible answers