New Built-in Function STRING_AGG() – SQL Server 2017
SQL Server 2017 introduces a set of useful functions like STRING_AGG(), STRING_SPLIT(), TRIM()… and many more. In this tip, I am...
2018-02-28
9,376 reads
SQL Geek
Who installed SQL Server?
Recently, I was working with the team and got stuck up with SQL Server Installation information. We got an urgent...
2018-02-27
17,409 reads
Change the name of master database files – SQL Server on Linux
In my recent blog, I discussed about how to move master database to another location. One of the readers requested...
2018-02-26
751 reads
How to Move Master Database to Another Location – SQL Server On Linux
With the release of SQL Server 2017 CU4, you can use the mssql-conf utility to move the master database file...
2018-03-07 (first published: 2018-02-23)
2,090 reads
Capture SQL Server Reported Errors using Extended Events
In my introduction to Extended Events blog, I mentioned that the xEvent is my favorite toy for performance troubleshooting. This blog may...
2018-03-05 (first published: 2018-02-20)
11,086 reads
Extended Event Packages
I continue blogging on extended events. Today, I will discuss about the top level containers (Package) that gives access to...
2018-01-25
504 reads
Mapping SQL Trace to Extended Events
Since I started actively participating in SQL community, I found it is very common that people will approach to seek...
2017-12-19
2,200 reads
Reset SA password on SQL Server on Linux
This article is about how to proceed when you forgot the password of your SQL Server “sa” account, Password was entered...
2017-12-11
40,122 reads
How to Get Estimated Completion Time of SQL Server Database Backup OR Restore
“How much time SQL Server is going to take to complete the database Backup or Restore” – This is one of...
2017-12-21 (first published: 2017-12-09)
34,429 reads
Introduction to Extended Events
Since I started playing with Extended Events, it has been my favorite toy for performance troubleshooting. It was introduced in...
2017-11-29
854 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
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