I saw something like this the other day. My first thought was “Hu, never seen that before.” My second thought was “Wow, that’s really cool. I wonder what a hypothetical index is?” A quick search later and I discovered that the DTA (database tuning adviser) uses them to test out… Read more
DBA: Help me! Help me! It’s Halloween! I have a problem! Oh won’t you please help me!
Ok, so that’s really got nothing to do with the Halloween problem. But it is Halloween today so it seemed like a good time to bring the subject up. Of course if… Read more
As I write this we are packing to leave for Disney World, where my family and I will spend close to a week hanging out with hundreds of thousands of the happiest people, not just from the US, but from all over the world. Then while I’m traveling home thousands… Read more
You’ll hear these terms thrown around in programming all the time, but what do they mean and why do we care? Starting with simple definitions first:
- occurring at the same time; coinciding in time; contemporaneous; simultaneous.
- going on at the same rate and exactly together; recurring together.
- Physics, Electricity.…
For anyone who wasn’t aware SQLCMD is a command line tool for running T-SQL statements and scripts. Before anyone says anything I want to point out that yes, I realize that you can use Powershell instead. Of course not all of us know Powershell all that well and most of… Read more
A while ago I talked about Templates. This is an easy way to get a, well, template of a piece of code. But a much faster way to get a simple template is to use a snippet. With a simple key command (ctrl-K, ctrl-X) you can… Read more
Indexes are great. They speed up our queries. In fact, without them relational database systems wouldn’t work.
Different indexes work best for different queries. In a system with a lot of queries that means we could need a lot of indexes. Fortunately we can have up to 999 non-clustered indexes… Read more
My friend Andy Mallon (b/t) is hosting T-SQL Tuesday this month. In case you aren’t aware T-SQL Tuesday is a blog party started by Adam Machanic (b/t) almost 7 years ago. Each month someone selects a topic and hosts the “party”. Then… Read more
I saw an interesting question today about rounding. Specifically they always wanted to round down. Now as it happens that wasn’t really what they needed, but we can get to that later. It did get me thinking and I figured it would make a good post.
This… Read more
I was awarded the Microsoft MVP (data platform) award on Saturday.
On the four days a year (one per quarter) when the MVPs are announced a number of us (wow I can’t believe I just said us) post the fact on twitter, usually under the hashtag #mvpbuzz. This was… Read more
It’s funny how easy it is to find information you aren’t looking for. A few weeks back Stephen Bennett (b) linked to my post Comparing Two Query Plans. Since I always find that interesting I followed the link and wound up at his post 3 Reasons to?… Read more
As I work on my speaking skills one of my tasks is improve my PowerPoint presentations. To that end I’ve been collecting a few links with examples and instructions I have been using to improve my skills.
A while back I wrote a post on everything I knew about identity columns. In it I mentioned the following:
- Negative increments can be handy if your identity column has reached the max value of the data type. Reseed to 0 (assuming that is where you started) and set…
For many years it’s been a best practice to never put an ORDER BY in a view. The idea is that a view shouldn’t have an inherent order. Just like any other query. If you want the data from a view ordered then you query the view with an ORDER… Read more
It’s not my fault. I had to be sarcastic. I had to mention the correct Read more
So to start, what’s a BACPAC?
Per the Azure documentation
When you need to create an archive of an Azure SQL database, you can export the database schema and data to a BACPAC file. A BACPAC file is simply a ZIP file with an extension of BACPAC. A BACPAC file…
This is nothing new but it’s still a fun idea.
- The vendor app we just purchased (and are told we must keep) requires the sa password.
- The vendor insists that sa is hard coded into the app and can’t possibly be changed.
- The sa account is the built…
I recently spoke at the OKC SQL Saturday. I had an wonderful time and the organizers, volunteers and other speakers were awesome. There was an amazing amount of learning to be had by all.
My session was called The Accidental DBA, Developer Edition. It is an attempt to start… Read more
First things first the DMA is a replacement of the Upgrade Adviser. In fact it’s an upgrade of the Upgrade Adviser. It has some amazing new features.
- You can install…
There has been a long standing debate over the use of a natural primary key vs an artificial one. I thought I would throw in my two cents.
First of all why is it important? The primary key is used for two major purposes.
The primary key is one… Read more