Inspector V1.3 now available
Inspector V1.3 is now available on GitHub.
We have updated the sample report for you to play with which includes the...
2019-01-15
151 reads
Happy New Year, Here are our Most Popular Posts of 2018
Firstly, all of us at SQL Undercover would like to wish you a very Happy New Year and all the...
2018-12-31
236 reads
Quickly Compare Data in Two Tables Using CHECKSUM and CHECKSUM_AGG
There are times when we need to compare two tables and figure out if the data matches. I often see...
2018-12-31 (first published: 2018-12-18)
4,099 reads
Managing Logins and Users Across An Availability Group
What’s the deal with logins and availability groups?
I’m sure that we all, when creating a login that accesses a database...
2018-12-26 (first published: 2018-12-05)
2,268 reads
A curious case of case when and Null values
For some reason I have always written my Case statements using the following logic:
SELECT
CASE
WHEN @Priority = 1 THEN 'Very High'
WHEN @Priority...
2018-12-12 (first published: 2018-11-28)
2,813 reads
High CPU and Query Store, A Story of Spinlock Heartache
This is going to be a quick look at an issue that we recently encountered, I’m not going to go...
2018-12-04 (first published: 2018-11-20)
2,364 reads
T-SQL Tuesday – Non-SQL Server Technologies
So, this month’s T-SQL Tuesday topic is to think about a non-SQL Server technology that we want to learn.
For me,...
2018-11-15 (first published: 2018-11-06)
2,159 reads
Signing Stored Procedures That Access Multiple Databases
A while back I wrote a post, Digitally Signing a Stored Procedure To Allow It To Run With Elevated Permissions
Recently Manish...
2018-11-08 (first published: 2018-10-30)
2,564 reads
Identifying delays between SQL calls using SQL profiler
One of the common goto methods for query specific slowness which can be replicated via an application can be to...
2018-11-05 (first published: 2018-10-24)
2,216 reads
A Play Around With Table Variable Deferred Compilation in SQL 2019
Table variables, they’re nasty, dirty little things that perform about as well as a Robin Reliant in a crosswind, right? ...
2018-10-25 (first published: 2018-10-16)
2,078 reads
Blogs
AI Helps Me with My Sloppiness
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
WITH clause gets a 26ai boost!
By way of background, a while back I did video called “My New Favourite...
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
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...
ALAMAT KONTAK BCA KCU PONTIANAK Telp,Cs:08218154393
WA:08218154393 Jl. Jenderal Ahmad Yani No.1, Benua Melayu Darat, Kec. Pontianak Sel., Kota Pontianak,...
ALAMAT KONTAK BCA KCU BALIKPAPAN Telp,Cs:08218154393
WA:08218154393 Jl. Jenderal Sudirman No.139, Klandasan Ilir, Kec. Balikpapan Kota, Kota Balikpapan, Kalimantan Timur...
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