Mission Critical Deployments
Is a software deployment responsible for a plane crash? That's a scary thought.
Nope to NoOps, No way to NoDBA
Phil Factor suspect the NoOps movement is dressing up some old mistakes in fancy new clothes.
MySQL Error Handling using the Signal and Resignal Statements
MySQL introduced the SIGNAL and RESIGNAL statements in version 5.5 to allow you to raise your own error conditions from stored procedures, triggers, and events. Rob Gravelle demonstrates how to utilize both.
How many environments?
This Friday Steve Jones looks at the setup for your software pipeline. He's wondering how complex it is with how many separated environments.
Data Mining Part 31: DMX functions
In this chapter, we will learn how to use some DMX functions in our mining models.
Data Mining Part 31: DMX functions
In this chapter, we will learn how to use some DMX functions in our mining models.
What is Database Lifecycle Management (DLM)?
When the different teams that are involved throughout the life of a database fail to reconcile their different roles and priorities, and so fail to cooperate or work adaptively, the result is gridlock: databases defined as though carved in stone rather than by code and data. William Brewer explores how DLM can offer an alternative that allows databases to respond quickly to business change.
Proactive SQL Server Health Checks, Part 4 : ERRORLOG
Don't underestimate the ERRORLOG. There is some great information in it for you to use not just when you're troubleshooting performance or investigating errors, but also when you're proactively monitoring an instance. Erin Stellato explains.
Why PolyBase matters - Part 2
Part 2, a more in depth look at An alternative approach to disaster recovery and backup strategies using PolyBase.
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...
SQL Server Still Wins
Comments posted to this topic are about the item SQL Server Still Wins
DBCC CHECKDB Limits I
Comments posted to this topic are about the item DBCC CHECKDB Limits I
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