Every Kimball Group book I’ve read, as well as every Data Warehouse class I’ve attended, has indicated that a Date Dimension Primary Key should be a smart integer key in the format YYYYMMDD (20110518) so I’ve always built my Date tables that way. However, Barnaby (Blog/Twitter) pointed out that I should be using a Date [...]
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I get a ton of questions and calls about SQL Server Maintenance issues from Administrators who just want their server to work and be protected. They’re not interested in the intricate structure of a transaction log, how to use wait stats, etc. While many database administrators who read this article will disagree or perhaps outright [...] A Made2Manage customer called me with a serious performance problem with one of his custom reports. After I looked at it, I realized that the inventory changes in M2M Version 6.0 were the culprit. To give you some idea of his problem, the query in question ran took a few seconds before the migration and [...] |
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