September 2007 - Posts

• What if null if null is null null null is null?

  In this fourth and final part in my series about NULL, I’ll discuss some well-known and some less well-known functions and keywords that are specifically created to deal with NULL values. And I will, of course, explain why null if null is null null null Read More... Posted Sunday, September 30, 2007 11:19 PM by Hugo Kornelis | 9 Comments Filed under: T-SQL, Surprise, Database theory, NULL

• Dr. Unknown, or how I learned to stop worrying and love the NULL

  Two months ago, I posted the first two parts of a series about NULL. After that, I went quiet. Much to do and little time was one excuse. But to be honest, I also lost interest. However, I felt I owe my readers to conclude the series, so I have now forced Read More... Posted Saturday, September 22, 2007 11:35 PM by Hugo Kornelis | 11 Comments Filed under: T-SQL, Database theory, NULL

• Upcoming speaking events

  I know I’ve been neglecting my blog lately, but I at least have a valid excuse this time. Four weeks ago, I received two emails on a single day, both inviting me to speak at two different Dutch events that will be held in the same week. I replied “yes” Read More... Posted Monday, September 10, 2007 12:54 AM by Hugo Kornelis | 4 Comments Filed under: Personal, Conference, People