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From: Ernesto <e.p...@un...> - 2010-04-29 07:20:22
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I'm sorry, I have a last question that it may be close related to what I'm doing. In practice I need to extract a subset of rows from a tables and then sort them according to specific criteria. Of course the best thing should be a pre-sorting of the table before the extraction in order to get a sorted list. Anyway I could extract my rows and sort them in a next step. However, I don't know a priori if my extracted list can fit the available memory. So the question or better my curiosity concerns the possibility to extract a very big subset of rows also when I don't have all available memory. Thank a lot and sorry if I'm taking your time with my basic (or stupid) questions, Ernesto |