'Relation scheme' presentation slideshows

Relational Database Structure

Relational Database Structure. - Relation : set of tuples - Tuple : 1) ordered set (i.e. list) of values from domain D1, D2, ..., Dk 2) mapping from attribute names to values in the domains of the attributes => standard definition

3.14k views • 67 slides

Schema Refinement and Normal Forms

Schema Refinement and Normal Forms. Chapter 19. Instructor: Mirsad Hadzikadic. The Evils of Redundancy. Redundancy is at the root of several problems associated with relational schemas: redundant storage, insert/delete/update anomalies

651 views • 42 slides

Schema Refinement and Normal Forms

Schema Refinement and Normal Forms. Chapter 15. The Evils of Redundancy. Redundancy is at the root of several problems associated with relational schemas: redundant storage, insert/delete/update anomalies

581 views • 34 slides

Schema Refinement and Normal Forms

Schema Refinement and Normal Forms. Chapter 19. The Evils of Redundancy. Redundancy is at the root of several problems associated with relational schemas: redundant storage, insert/delete/update anomalies

662 views • 25 slides

Introduction to databases

348 views • 21 slides