Short Stroking and Performance
Disk performance can make a difference to your SQL Server instance. Steve Jones discusses a few things this week.
Load Testing in a Big Data Environment
Load tests give the database administrator quite a lot of valuable information and may make the difference between poor and acceptable application performance. But are there any gotchas or traps associated with big data?
Getting Started in SQL Server
Preparing for your first (or next) interview or job in SQL Server. A good introduction from Craig Farrell.
Team Reputation
The way that various departments might view a team of technology employees can affect how we interact. Andy Warren remembers a few situations and notes it's always more fun to join a team with a good reputation.
High Performance Relational Division in SQL Server
Relational division is used in SQL to select rows that conform to a number of different criteria. Dwain Camps explains how to use it, and shows the performance gains.
SQL Monitor Custom Metric: Server principals with default database offline
This metric monitors whether a server principal’s default database is offline. When you create a SQL Server server principal (formerly referred to as a server login) it has a default database setting that is used to assist in a connection request when no database is specified.
The Internet of Things
Today Steve Jones notes that the explosion of cheap hardware and electronics might be good for data professionals.
Data Science Laboratory System - Distributed File Databases
Distributed File Databases manage large amounts of unstructured or semi-structured data. Buck Woody shows how to install Hadoop in your Data Science lab to experiment with an example of the breed.
How to recover a suspect msdb database in SQL Server
A SQL Server MSDB database is flagged as "suspect"... what can you do? John Grover has some suggestions
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...
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