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From Teradata documentation, the definitions of these ResUsageSpma columns are: FilePres Total number of times a cylinder is loaded. FilePreReads Number of times a cylinder is loaded. which look similar, but I observed on our lab's Teradata and found quite different values with an observation that: I also looked into KA but couldn't find any explanation. Please respond if you know the meaning of these fields.
20 Dec 2009
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