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Derived operations - PowerPoint PPT Presentation

Lecture 3: Relational Algebra and SQL

Lecture 3: Relational Algebra and SQL. Tuesday, March 25, 2008. Outline. Relational Algebra: 4.2 (except 4.2.5) SQL: 5.2, 5.3, 5.4. Querying the Database. Goal: specify what we want from our database Find all the employees who earn more than $50,000 and pay taxes in New Jersey.

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Derived operations - PowerPoint PPT Presentation

Lecture 3: Relational Algebra and SQL