'Division operation' diaporamas de présentation

Chapter 3: Relational Model

Chapter 3: Relational Model. Structure of Relational Databases Relational Algebra Tuple Relational Calculus Domain Relational Calculus Extended Relational-Algebra-Operations Modification of the Database Views. Basic Structure.

686 views • 64 slides

The Relational Algebra

The Relational Algebra. CONTENTS. 1 Relational Algebra Operations From Set Theory * UNION * INTERSECTION * MINUS * CARTESIAN OPERATION 2 Binary Relational Operations * JOIN * DIVISION. Relational Algebra Operations From Set Theory.

355 views • 24 slides

Binary Operations

501 views • 23 slides

CARTESIAN (or cross) Product Operation

CARTESIAN (or cross) Product Operation. Defines a relation Q that is the concatenation of every tuple of relation R with every tuple of relation S. This operation is used to combine tuples from two relations.

187 views • 15 slides

Integers and Absolute Value

Integers and Absolute Value. By: Jeffrey McAven. What is a Integer?. A Integer is all positive and negative whole numbers. (Lets look at a summary of all real numbers). What is Absolute Value?. Absolute Value is the distance a number is from zero on a number line. ALWAYS a positive number

449 views • 13 slides