Using GUIDs in Primary Keys / Clusted Indexes
问题 I'm fairly well versed in SQL server performace but I constanly have to argue down the idea that GUIDs should be used as the default type for Clusterd Primary Keys. Assuming that the table has a fairly low amount of inserts per day (5000 +/- rows / day), what kind of performace issues could we run into? How will page splits affect our seek performance? How often should I reindex (or should I defrag)? What should I set the fill factors to (100, 90, 80, ect)? What if I were inserting 1,000,000