T-SQL Tuesday #124 – Query Store Summary
Happy St. Patrick’s Day (are you wearing something green)! For March I asked everyone to blog something related to Query Store, here is a summary of in alphabetical order...
2020-03-17
4 reads
Blog Posts
T-SQL Tuesday #124 Query Store and Spin Locks #tsql2sday
This month’s T-SQL Tuesday invitation comes from Tracy Boggiano and she’s asking us to write about our experiences with Query Store. I thought about what I should write, I’m...
2020-03-17 (first published: 2020-03-10)
340 reads
Azure SQL DB – An instance-specific error occurred while establishing a connection to SQL Server.
The full message when connecting to your Azure SQL Database is: Reason: An instance-specific error occurred while establishing a connection to SQL Server. The public data endpoint on this...
2020-03-16
387 reads
Extended Events: system_health and a Long Running Query
Wouldn’t it be great to just quickly and easily take a look at your system to see if you had any queries that ran for a long time, but,...
2020-03-16 (first published: 2020-03-09)
567 reads
Improved VMware vCenter Performance Metric Logging
By default, the vSphere vCenter deployment contains a virtual appliance where the VMware management and orchestration platform, vCenter, resides and runs from. The default performance metric statistics collection interval...
2020-03-16 (first published: 2020-03-09)
277 reads
Learning some DAX
I’ve not done much BI work in my career, other than simple aggregates in reports. I’ve wanted to tackle projects, but I’ve rarely had a chance to spend time...
2020-03-16
226 reads
Power BI Sharing
There are many ways to share the dashboards, reports, and datasets that you create in Power BI. Below I’ll compare all such options (there are twelve!). First make sure...
2020-03-16
98 reads
SQLOrlando Update
We’ve cancelled our upcoming Meetups in April and May due the loss of our venue (due to corona virus worries) though we would have probably cancelled them anyway. Our...
2020-03-16
7 reads
SQLpassion in the time of Covid-19
(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance...
2020-03-16
3 reads
ADF – Continuous Integration & Deployment with Azure DevOps
Building CI/CD process for Azure Data Factory is not quite straightforward. Furthermore, there are a few different methods of doing that. Before we begin doing that, we must set...
2020-03-14
18 reads
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
By Steve Jones
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
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How We Handled a Vendor Retry That Loaded Twice in Snowflake
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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