'Relational data base' diaporamas de présentation

The Relational Data Model

The Relational Data Model. Properties of Relations Keys and Constraints. Relational Data Base. The data base is a collection of relations or tables. Data organisation is based on the relational data model.

1.64k views • 39 slides

Michael Bruneforth, UNESCO Institute for Statistics Expert Group on SDMX m.bruneforth@uis.unesco.org May 10, 2007, UN, G

Building SDMX Data Structure Definitions based on a generic conceptual model for contents Experience with the joint Eurostat-Unesco-OECD education statistics questionnaire. Michael Bruneforth, UNESCO Institute for Statistics Expert Group on SDMX m.bruneforth@uis.unesco.org

415 views • 25 slides

Michael Bruneforth, UNESCO Institute for Statistics Expert Group on SDMX m.bruneforth@uis.unesco.org May 10, 2007, UN, G

Building SDMX Data Structure Definitions based on a generic conceptual model for contents Experience with the joint Eurostat-Unesco-OECD education statistics questionnaire. Michael Bruneforth, UNESCO Institute for Statistics Expert Group on SDMX m.bruneforth@uis.unesco.org

364 views • 25 slides

HAP 709: Healthcare Databases

425 views • 24 slides

HCSI 709: Healthcare Databases

HCSI 709: Healthcare Databases. Introduction to Database Structures By Farrokh Alemi, Ph.D. Francesco Loaiza, Ph.D. J.D. Voice of Vikas Arya. Objectives. Learn about flat, hierarchical and relational databases Learn about information-less databases.

350 views • 18 slides

Anthropometric Databases and Applications

743 views • 17 slides

A presentation by W H Inmon

296 views • 16 slides

Dimensional Modeling Primer

Dimensional Modeling Primer. Chapter 1 Kimball & Ross. Concepts Discussed. Business driven goals Data warehouse publishing Major components Importance of dimensional modeling for the presentation area Facts & dimension tables Myths of dimensional modeling Pitfalls to avoid.

523 views • 14 slides