Transcription of Database Fundamentals - ESP
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Database Fundamentals - ESP
Database Fundamentals : 1 File: N_drive:\jhu\class\1995\ 1994, 1995 Robert RobbinsDatabaseFundamentalsRobert J. RobbinsJohns Hopkins Fundamentals : 2 File: N_drive:\jhu\class\1995\ 1994, 1995 Robert RobbinsWhat is a Database ?General: A Database is any collection of related : A Database is a persistent, logically coherentcollection of inherently meaningful data, relevantto some aspects of the real portion of the real world relevant to the Database is sometimes referredto as the universe of discourse or as the Database miniworld. Whatever itis called, it must be well understood by the designers of the Fundamentals : 3 File: N_drive:\jhu\class\1995\ 1994, 1995 Robert RobbinsWhat is a Database Management System?
represented in a computer system as an n-column tabular file, with one member ... 1995 Robert Robbins Database Fundamentals: 16 Relations as a Database The business data file resembles a relation in a number of ways. The tabular file itself corresponds to a relation. Each column, or attribute, in the file
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