Description: Database fourth version of the answer ( Wang Shan Sa Shixuan )
The first chapter
1. The data, database, database system, database management system concept.
A.:
( L ) data ( Data ): describes things record of known data symbols. Data types, text, graphics, digital image, sound, text. Data and its semantics are inseparable. Analysis of data in modern computer systems is a broad concept
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数据库系统概论第四版最新答案.doc
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