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32 analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the 33 for designing and constructing an improved system. 34 is such a technique. The emphasis in this technique is process-centereD. Systems analysts draw a series of process models called 35 . 36 is another such technique that integrates data and process concerns into constructs called objects.
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32 analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the 33 for designing and constructing an improved system. 34 is such a technique. The emphasis in this technique is process-centereD. Systems analysts draw a series of process models called 35 . 36 is another such technique that integrates data and process concerns into constructs called objects.
32 analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the 33 for designing and constructing an improved system. 34 is such a technique. The emphasis in this technique is process-centereD. Systems analysts draw a series of process models called 35 . 36 is another such technique that integrates data and process concerns into constructs called objects.
给定供应关系SPJ(供应商号，零件号，工程号，数量)，查询至少供应了3项工程 (包含3项)的供应商，输出其供应商号和供应零件数量的总和，并按供应商号降序排列。 SELECT供应商号，SUM(数量)FROM SPJ 24 25 26 ;
给定供应关系SPJ(供应商号，零件号，工程号，数量)，查询至少供应了3项工程 (包含3项)的供应商，输出其供应商号和供应零件数量的总和，并按供应商号降序排列。 SELECT供应商号，SUM(数量)FROM SPJ 24 25 26 ;
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