The Bit Bucket

In a recent post, I talked about my use of SnagIt and how I think people should be prepared to pay a little for applications. I’m endlessly puzzled by people I see stumbling around using free alternatives that don’t do the job, when there are good options available.

I had some interesting feedback from that post and it got me thinking further though, about how much we should be prepared to pay for applications? Why is there an expectation that most apps that we use will be free?

2018-10-23

I’ve done a lot of Microsoft certification exams over the years. Most of those have been SQL Server exams. The quality of the questions in those exams though, varies enormously.

One of the exams that really drove me crazy a while back was one of the intro-level ones. The problem was with the number of errors in the exam. When the question-writer gives you five substantial blocks of T-SQL, and asks which one is correct, yet they are all actually wrong in some way, that makes it a very, very tough question to answer. I find these types of exams very tiring because I’m endlessly trying to second guess what the question writer actually meant to ask. Some exams have a large number of these.

2018-10-22

I regularly hear the terms AI and Machine Learning used almost interchangeably, along with a variety of other related terms. I thought it would be useful to add a post that defines some of the common terms and how they differ:

Artificial intelligence (AI) is a fairly generic term. It relates to all intelligent agents that are able to be aware of their environments (in some way), and to take actions where the aim is to achieve a specified goal. Sometimes these goals are terminal ie: they reach a final desired state. Other times, these goals are continuous ie: keep speed at a desired value. It is considered “artificial” intelligence as to an observer, it mimics cognitive functions that humans would imagine other humans performing.

2018-10-19

This is probably one of the simplest tips that I’ve published, yet I’m endlessly surprised how many people do not realize that it’s available.

When you have a script loaded in SQL Server Management Studio (SSMS), and you execute the script, you might run into an error like this:

To find where the error is, just double-click the error down in the Messages tab. I double-clicked it, and it took me directly to the error and highlighted it:

2018-10-18

In SQL Server Management Studio, there’s no great way to list all the foreign keys that are defined in a database.

In our free SDU Tools for developers and DBAs,  we added a function ListForeignKeys to do just that, and to provide their details in a form that’s easy to consume programmatically if you need that.

You can see how to execute it in the main image above. The procedure takes these parameters:

2018-10-17

I don’t normally do blog posts to just promote products from companies, but two weeks ago I was asked about tools that I use on a daily basis and that I really wouldn’t want to do without. Normally with a question like that, I have to think for a while. But this one’s easy: It’s SnagIt from TechSmith.

It’s the one tool that I use in nearly every part of my work. I use it all day long. If I didn’t have it, it would harm my productivity in a significant way.

2018-10-16

SDU Tools is a toolkit that’s simple to use, has many useful functions, procedures, and views, and is updated regularly. Even if you aren’t using the tools as a set, they provide wonderful examples of how to do things in T-SQL. We have released version 12.0 of these popular tools.

The tools are free tools for DBAS and Developers. Tools for comparing databases, tables, finding unused indexes, manipulating strings, performance tuning converting data, and so much more.

2018-10-15

I’ve flown a lot over the years. What continues to strike me though, is how poorly airlines use machine learning and AI, even when they are in strong competitive environments. A key indicator is detecting and avoiding customer churn. Let me give you an example:

We flew with QANTAS and with their partners in One World for many years. We were both platinum and I’d been platinum for many years. At a recent peak a few years ago, we were flying once or twice a week. That’s not a crazy amount, but it’s enough. And it’s certainly enough to be able to see a purchasing pattern.

2018-10-12

When you right-click a table in SQL Server Management Studio, you get options for selecting or editing but the number of rows is limited:

Those values can be changed. By default, these numbers are both 200, but I’ve decided to change the default number of rows selected to 1000.

In Tools, Options, SQL Server Object Explorer, then Commands, you can set the values to whatever suits you:

I don’t tend to ever use the Edit option but I’d suggest not making it too large.

2018-10-11

XACT_ABORT is one of the least well understood options that you can configure in a SQL Server session. Yet it’s very important. XACT_ABORT makes statement-terminating errors become batch-terminating errors. Without it, even within a transaction, many errors only terminate the statement that they occur in, and control passes to the next statement within the transaction, not out of the transaction.

In nearly every stored procedure that I write, the template includes the following lines:

2018-10-10