This e-book is a complete presentation of entity-relationship (ER) modeling in regards to an built-in improvement and modeling of database purposes. It comprehensively surveys the achievements of study during this box and offers with the ER version and its extensions. additionally, the ebook provides suggestions for the interpretation of the ER version into classical database types and languages, resembling relational, hierarchical, and community types and languages, in addition to into object-oriented versions.
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