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NoSQL Data Modeling

NoSQL Data Modeling
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Copyright: 2018
Pages: 30
Source title: Bridging Relational and NoSQL Databases
Source Author(s)/Editor(s): Drazena Gaspar (University of Mostar, Bosnia and Herzegovina)and Ivica Coric (Hera Software Company, Bosnia and Herzegovina)
DOI: 10.4018/978-1-5225-3385-6.ch003

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Abstract

The chapter discusses the necessity for data modeling in NoSQL world. The NoSQL data modeling is a huge challenge because one of the main features of NoSQL databases is that they are schema-free, that is they allow data manipulation without the need for the previous modeling or developing an entity-relationship (ER) or similar model. Although the absence of a schema can be an advantage in some situations, with the increase in the number of NoSQL database implementations, it appears that the absence of a conceptual model can be a source of substantial problems. In order to better understand the need for data modeling in NoSQL databases, first the basic structure of an ER model and an analysis of its limitations are summarized, especially regarding an application in NoSQL databases. The concept and Object modeling notation is presented as one of the possible solutions for data modeling in NoSQL databases.

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