Getting Help Online
I spend a lot of time in the forums on various web sites, trying to assist people with getting help online. It’s shocking how hard they make it. Let’s...
2022-11-02 (first published: 2022-10-24)
151 reads
The Scary DBA
Monitor Cardinality Feedback in SQL Server 2022
It’s possible for you to see new technology at work if you use Extended Events to monitor cardinality feedback. To put it simply, cardinality, the number of rows being...
2022-10-26 (first published: 2022-10-17)
240 reads
Query Store at PASS Data Community Summit
While Query Store has been out for quite some time now, released in 2016, there’s still quite a lot of missing understanding of what Query Store can do for...
2022-10-11
9 reads
Check Every Metric
Recently, a person asked about the costs differences in an execution plan, referencing them as if they were performance measures. The key to understanding performance is to check every...
2022-10-10
18 reads
PGSQL Phriday #001: Two Truths and a Lie
As a part of my own journey of learning within PostgreSQL, I’ve decided that I’m going to take part in PGSQL Phriday as often as I can, just as...
2022-10-21 (first published: 2022-10-07)
190 reads
DevOps From Redgate
In a few weeks at the PASS Data Community Summit, I’ll be joining several other Redgaters to put on an all-day precon where we take you on a database...
2022-10-14 (first published: 2022-10-04)
118 reads
Function Vs. Performance
Recently I was looking through DBA.StackExchange when I saw a pretty simple question that I decided to answer. I went off, set up a test database and some test...
2022-10-03
27 reads
Why You Need Presentation Skills
And no, the answer is not because you want to be a Microsoft MVP. Multiple surveys have been published over the decades that list “fear of public speaking” as...
2022-09-29
27 reads
Query Tuning At PASS Data Community Summit
The all new, in-person, PASS Data Community Summit is in just a few weeks. Since I’m shortly going to be publishing a 100% rewritten book on query tuning, I...
2022-10-12 (first published: 2022-09-28)
211 reads
Extended Events for Anything but Query Tuning: bulk_insert_usage
Wouldn’t it be great to be able to directly monitor specific behaviors within SQL Server, like, oh, I don’t know, knowing exactly when, and how, someone is using BULK...
2022-09-19
47 reads
Blogs
Methodology for dealing with bad data in production
By Brian Kelley
Pinal Dave wrote up his methodology for what to do when you discover bad...
How to Provision an Azure SQL Database
Aside from spinning up a SQL Server instance container, the free Azure SQL Database...
Claude finds two cryptographic weaknesses (but the sky isn’t falling)
By Brian Kelley
If you haven't seen the announcement, Anthropic was able to utilize Claude (Mythos Preview)...
Forums
Why SQL Server Database Attach fails and how to repair it
Comments posted to this topic are about the item Why SQL Server Database Attach...
Fixing P1 Queries
Comments posted to this topic are about the item Fixing P1 Queries
BIT_COUNT() IV
Comments posted to this topic are about the item BIT_COUNT() IV
Question of the Day
BIT_COUNT() IV
In SQL Server 2025, I run this code:
select bit_count('A')
What is returned? See possible answers