SQL Server TempDB Tutorial
In this article we cover many different questions about the SQL Server TempDB database to give a better understanding of what is and what it is used for.
SQL Server Backup Monitoring with PowerShell
In this part of the series we look at how to use the PowerShell monitoring scripts to collect backup information from your monitored instances.
SQL Server MSDB Database Tutorial
In this tutorial we will cover common questions related to the SQL Server msdb database. This is one of the standard system databases that are part of every SQL Server installation. This tutorial will give you a better idea of what the msdb database.
Hacking the Admin
A Twitter hack brings into the question of who can make changes in production for Steve.
Stairway to Columnstore Indexes Level 13: Improvements in SQL Server 2016
This stairway series was started in 2015. As such, the focus was on SQL Server 2012 and SQL Server 2014 only. When SQL Server 2016 was released, with lots of improvements in the columnstore technology, I decided to finish the planned levels with the original focus on SQL Server 2012 and 2014, and add one extra level with a brief overview of the improvements available in SQL Server 2016.
Automate Database Restore for SQL Server
In this article we look at how to automate a SQL Server database restore using a PowerShell script.
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
Monday Monitor Tips: Virtual Machine Usage and Cost
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One of the things I’ve been requesting for a number of years is cost...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
Question of the Day
Getting the Average
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