My name is Mark House. I'm currently a SQL instructor (MCT) and consultant-at-large in the greater DFW area.
Prior to this, I spent four years working for Microsoft as a SQL support engineer helping people solve their SQL problems. These were usually performance and design issues, but I saw many "once in a lifetime" problems. Before working at Microsoft I spent a decade working as a SQL DBA and developer in the ecommerce, financial, and communications industries.
I occasionally present at various SQL events and hold several SQL-related certifications. If you'd like to see me blog about something, have a question, or would like to see me speak in your area, feel free to drop me a line.