'Super key' diaporamas de présentation

SQL Training

SQL Training. Sumali Conlon Associate Professor of MIS University of Mississippi University, MS 38677 sconlon@bus.olemiss.edu Phone: 662-915-5470. Outline. General Relational Database concepts (very briefly) Database Design Theory and Methodology (briefly) SQL

2.07k views • 115 slides

Entity-Relationship Modelling

1.2k views • 65 slides

Entity-Relationship Modelling

Entity-Relationship Modelling. Entities Attributes Relationships Mapping Cardinality Keys Reduction of an E-R Diagram to Tables. Entity Sets. A database can be modeled as a collection of: entities, and relationships among those entities.

668 views • 65 slides

Chapter 6: Entity-Relationship Model

Chapter 6: Entity-Relationship Model. Chapter 6: Entity-Relationship Model. Design Process Modeling Constraints E-R Diagram Design Issues Weak Entity Sets Extended E-R Features Design of the Bank Database Reduction to Relation Schemas Database Design UML. Modeling.

942 views • 60 slides

Riyadh Philanthropic Society For Science Prince Sultan College For Woman

Riyadh Philanthropic Society For Science Prince Sultan College For Woman Dept. of Computer & Information Sciences CS 340 Introduction to Database Systems (Chapter 5: The Relational Data Model and Relational Database Constraints). Outline Introduction Informal Definition

499 views • 38 slides

Why You Need a Master Key System?

Property owners are expected to guarantee the safety of their premises. You may install locks on the doors but still find that they are not enough as sometimes they can be easily picked or broken. You can, however, minimize this risk by having a qualified and experienced locksmith install a master key system. For more info visit https://www.popalockstl.com/

31 views • 2 slides