100+ Condition join PowerPoint (PPT) Presentations, Condition join PPTs

Condition join - PowerPoint PPT Presentation

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754 views • 51 slides

Relational Algebra

Relational Algebra. Chapter 4 - part I. Relational Query Languages. Query languages : Allow manipulation and retrieval of data from a database. Relational model supports simple, powerful QLs: Strong formal foundation based on logic. Allows for much optimization.

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392 views • 32 slides

Relational Algebra

Relational Algebra. Relational Model: Topic 3. Preliminaries. A query is applied to relation instances , and the result of a query is also a relation instance. Schemas of input relations for a query are fixed (but query will run regardless of instance!)

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240 views • 20 slides

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'Condition join' diaporamas de présentation

Condition join - PowerPoint PPT Presentation

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Relational Algebra

Relational Algebra