The Bit Bucket

In violation of Betteridge’s law of headlines, the answer is yes. When designing SQL Server databases, there are several reasons why you should be considering using schemas and not just having all your objects in the dbo schema.

This is a good example though, of where good advice regarding SQL Server dates. In SQL Server 2000 days, it was sound advice to keep all your objects owned by dbo (and at the time automatically part of the dbo schema), to avoid ownership chaining issues. That’s because ownership and the containing schema were one and the same concept.

2018-09-10

Using Audible to listen to books has allowed me recently to get through a lot of books that I would never have had time to get through. I’m determined to get through some classics as well. Self-improvement books don’t come more classic than Dale Carnegie’s How to Win Friends and Influence People so I listened to that too.

I know several people who say that, in the 1990’s, attending one of the seminars associated with this book, changed their lives. I can understand how that’s possible in some situations.

2018-09-07

SQL Server Management Studio (SSMS) is a flexible tool. One thing that often surprises people is that it hosts a version of Microsoft Internet Explorer, right inside the application.

Why would SSMS have a web browser I hear you ask?

Well this web browser lets browse URLs, and reference links, without leaving the tool.

You can open it directly by choosing Web Browser from the View menu:

On my machine, it’s under the Other Windows section. In fact, it’s the only window there on my machine, which makes you wonder why it has a separate section in the first place.

2018-09-06

I often need to do a quick check to see if the schema of two SQL Server databases is the same.

In our free SDU Tools for developers and DBAs, there is a stored procedure called GetDBSchemaCoreComparison to make that easy. It takes the following parameters and returns a rowset that’s easy to consume programmatically (or by just looking at it):

@Database1 sysname -> name of the first database to check @Database2 sysname -> name of the second database to compare @IgnoreColumnID bit -> set to 1 if tables with the same columns but in different order are considered equivalent, otherwise set to 0 @IgnoreFillFactor bit -> set to 1 if index fillfactors are to be ignored, otherwise set to 0

2018-09-05

Just a short post today to call out something that I’m seeing again and again. It’s where organizations purchase all their hardware and software platforms before they start to carry out a proof of concept. This is a very poor option.

I was reading the data strategy for a global company that I was doing consulting work for. They were proudly introducing the new strategy yet I was sitting looking at it, trying to work out what they were thinking. The first step of their plan was to buy everything they needed. The second step was to carry out a proof of concept to see how it would all work (presuming it would work suitably at all).

2018-09-04

Most companies have some sort of ongoing maintenance processes that perform periodic backups of databases. They also have log backups scheduled for any databases that are online and in full recovery model. However, when you first create a database, it might be in full recovery model yet never have had a full backup performed. If your scheduled jobs then try to create a log backup prior to the first full backup, the backup will fail, and that might make your job fail.

2018-09-03

Another fairly famous business book that I’ve read lately is Blue Ocean Strategy: How to Create Uncontested Market Space and Make Competition Irrelevant by V Chan Kim and Renee Maubo. Apparently over a million copies of this has been sold.

I really liked the basic premise of this book. It describes how most companies keep looking at what their existing customers want, and often that’s in what they call a red ocean ie: where all the sharks are fighting and tearing things apart.

2018-08-31

In a previous post, I mentioned that when a long running query completes, I might not have been waiting around for it, and so I wanted to know when it completed.

But sometimes I do wait around for a query to complete, yet I’m distracted by other things and don’t realize that the query has actually completed. That’s not surprising because if a query takes a long time, I’m probably going to go on with other work while that’s running.

2018-08-30

We’ve been building tools to create scripts for various SQL Server T-SQL objects for a long time. Part of scripting a table is the scripting of the data type. That means its datatype name, precision, scale, and maximum length.

In our free SDU Tools for developers and DBAs, we added a scalar function called FormatDataTypeName ot make that easy. It takes the following parameters:

@DataTypeName sysname - the name of the data type @Precision int - the decimal or numeric precision @Scale int - the scale for the value @MaximumLength - the maximum length of string values

2018-08-29

In the 1980’s and 1990’s, part of my time was spent as a lecturer and tech services manager at a university. I particularly loved working with final year students and their project work. At our regular meetings though, I also often got into discussion with the students about their career plans, as they were about to graduate. What amazed me was how many super-bright students were looking to take incredibly boring jobs working on ancient technologies, in what were basically programmer graveyards, and when I asked them why they were intending to go there, invariably they’d tell me that they thought those jobs would be long term and low risk.

2018-08-28