+100

What kills you the way you are doing it is log buffer flushes. Google them too if you are interested. Tally table is also known as a numbers table, and there are a number of articles about what you can do with them here. Jeff Moden is a primary author to seek out. I think he also has an article here on SSC.com using them to generate test data, which would definitely be helpful for you to review as well.