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Titlebook: Data Structures, Files and Databases; Carl Bamford,Paul Curran Textbook 1991Latest edition Carl Bamford and Paul Curran 1991 Access.data s

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樓主: CK828
41#
發(fā)表于 2025-3-28 16:28:33 | 只看該作者
Lecture Notes in Computer ScienceThe name ‘fourth generation language’ or 4GL has become widely used in recent times, yet there is no precise definition of it. The difficulty is in saying exactly what features are expected in a 4GL, even though the notion of ‘fourth generation’ is easy to explain.
42#
發(fā)表于 2025-3-28 21:47:27 | 只看該作者
Serial and Sequential Data Files,For permanent storage, data values can be held on a file on backing store (magnetic disc, tape etc.). By ‘permanent’, we mean that the values will remain until they are deliberately (or accidentally!) overwritten, and could be held indefinitely.
43#
發(fā)表于 2025-3-29 02:28:47 | 只看該作者
44#
發(fā)表于 2025-3-29 04:11:20 | 只看該作者
Recursion and Trees,Procedures and functions are both used in programs to perform specific tasks. The concept of recursion applies to them equally, so we shall use the term . to refer to them both.
45#
發(fā)表于 2025-3-29 10:46:51 | 只看該作者
Graphs, Networks and Relations,A . is a more general structure than a tree, consisting of a set of nodes and a set of edges connecting the nodes. Sometimes the term vertex is used instead of node, and arc instead of edge.
46#
發(fā)表于 2025-3-29 12:41:49 | 只看該作者
47#
發(fā)表于 2025-3-29 18:47:11 | 只看該作者
48#
發(fā)表于 2025-3-29 22:40:25 | 只看該作者
Marko Sarstedt with the process of solving exercises. Moreover, MACD replaces the multi fully connected layers with multi-heads attention layers to consider the relationship between the current exercise and the past exercises. We conduct experiments on several real-world datasets and the experimental results show
49#
發(fā)表于 2025-3-30 02:16:55 | 只看該作者
50#
發(fā)表于 2025-3-30 04:35:04 | 只看該作者
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