Microsoft Database Engine Tuning Advisor (DTA) is a database performance tuning utility designed to analyze your SQL Server database and suggest actions to be taken in order for taking your query performance to the next level.
Alex talks through a simple practical example of a database deployment, First creating a empty database and then upgrading it through three steps by writing T-SQL scripts, adjusting configuration files and the change log, before generating a full build script containing all schema objects.
Sometimes auditing for one certification might help you pass another, but don't count on it.
A new memory technology has the potential to dramatically speed up access for computer systems.
Join us at SQL Saturday Costa Rica on April 13, 2013 for a day of SQL Server Training and Networking.
You, as a SQL Server data professional, are looking for ways to improve your queries. You've done the usual - avoided cursors and loops, used locks effectively, examined execution plans - what else can you tweak? Check out this tip to learn more.
This article explores the place of emotion among knowledge workers doing team-based design activities.
The new SQL Server 2012 Sequence Object can be used to generate unique numbers that can be automatically incremented based on an increment value. Greg Larsen discusses the different features of the sequence object and how you can use it to generate sequence numbers.
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.
Cloud services need to have a much higher quality of work than their in-house equivalents if corporations are to take them seriously according to Steve Jones.
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I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers