'Select operation' presentation slideshows

2. Relational Model

2. Relational Model. Attribute Types. Each attribute of a relation has a name The set of allowed values for each attribute is called the domain of the attribute Attribute values are (normally) required to be atomic ; that is, indivisible

1.12k views • 100 slides

CHAPTER 8 The Relational Algebra and The Relational Calculus (plus QBE- Appendix C)

CHAPTER 8 The Relational Algebra and The Relational Calculus (plus QBE- Appendix C). Chapter Outline. Relational Algebra Unary Relational Operations Relational Algebra Operations From Set Theory Binary Relational Operations Additional Relational Operations

1.13k views • 96 slides

Chapter 6

The Relational Algebra and Relational Calculus. Chapter 6. Chapter Outline. Relational Algebra Unary Relational Operations Relational Algebra Operations From Set Theory Binary Relational Operations Additional Relational Operations Examples of Queries in Relational Algebra

1.1k views • 91 slides

The Relational Algebra and Calculus

The Relational Algebra and Calculus. Chapter Outline. Relational Algebra Unary Relational Operations Relational Algebra Operations From Set Theory Binary Relational Operations Additional Relational Operations Examples of Queries in Relational Algebra Relational Calculus

1.07k views • 90 slides

The Relational Algebra and Calculus

The Relational Algebra and Calculus. Chapter Outline. Relational Algebra Unary Relational Operations Relational Algebra Operations From Set Theory Binary Relational Operations Additional Relational Operations Examples of Queries in Relational Algebra Relational Calculus

1.25k views • 90 slides

The Relational Algebra and Calculus

The Relational Algebra and Calculus. Chapter Outline. Relational Algebra Unary Relational Operations Relational Algebra Operations From Set Theory Binary Relational Operations Additional Relational Operations Examples of Queries in Relational Algebra Relational Calculus

906 views • 90 slides

Chapters 3-6 Relational Data Models, Relational Constraints, and Relational Algebra

Chapters 3-6 Relational Data Models, Relational Constraints, and Relational Algebra. Flat file: A two dimensional array of attributes or data items ProductX 1 Bellaire 5 ProductY 2 Sugarland 5

1.07k views • 88 slides

Chapter 6 The Relational Algebra

Chapter 6 The Relational Algebra. Dr. Bernard Chen Ph.D. University of Central Arkansas. Relational Algebra. Relational algebra is the basic set of operations for the relational model These operations enable a user to specify basic retrieval requests (or queries ).

916 views • 74 slides

Chapter 6 The Relational Algebra

Chapter 6 The Relational Algebra. Dr. Bernard Chen Ph.D. University of Central Arkansas. Relational Algebra. Relational algebra is the basic set of operations for the relational model These operations enable a user to specify basic retrieval requests (or queries ).

862 views • 74 slides

The Relational Algebra

The Relational Algebra. Chapter Outline. Relational Algebra Unary Relational Operations Relational Algebra Operations From Set Theory Binary Relational Operations Additional Relational Operations Examples of Queries in Relational Algebra. Relational Algebra Overview.

1.15k views • 64 slides

Chapter 6 The Relational Algebra

Chapter 6 The Relational Algebra. Dr. Bernard Chen Ph.D. University of Central Arkansas Fall 2008. Relational Algebra. Relational algebra is the basic set of operations for the relational model These operations enable a user to specify basic retrieval requests (or queries ).

1.26k views • 54 slides

Algorithms for Query Processing and Optimization

Algorithms for Query Processing and Optimization. Chapter 15. Chapter Objectives. Introduction to the process of choosing a suitable execution strategy for processing a query. Chapter Outline. Introduction to Query Processing Translating SQL Queries into Relational Algebra

631 views • 49 slides

Chapter 6 The Relational Algebra and Relational Calculus

1.53k views • 43 slides

ECE 569 Database System Engineering Fall 2004 Topic VIII: Query Execution and optimization

ECE 569 Database System Engineering Fall 2004 Topic VIII: Query Execution and optimization. Yanyong Zhang www.ece.rutgers.edu/~yyzhang Course URL www.ece.rutgers.edu/~yyzhang/fall04. Select Operation. simple condition (C=A ? V)

382 views • 29 slides

ECE 569 Database System Engineering Spring 2004 Topic VIII: Query Execution and optimization

ECE 569 Database System Engineering Spring 2004 Topic VIII: Query Execution and optimization. Yanyong Zhang www.ece.rutgers.edu/~yyzhang Course URL www.ece.rutgers.edu/~yyzhang/spring04. Select Operation. simple condition (C=A ? V)

377 views • 29 slides

WinTool - CATIA V5 - Interface

500 views • 24 slides

Query Optimization in Database Systems

Query Optimization in Database Systems. Lindsey Blackstock CSc 6710. Overview. Description of query optimization and important concepts Survey of query optimization research Query optimization example. Basics.

1.42k views • 21 slides

Relational Algebra Lecture 7

Relational Algebra Lecture 7. Presented By: Miss N. Nembhard. Relation Algebra. Relational Algebra is : the formal description of how a relational database operates the mathematics which underpin SQL operations.

412 views • 19 slides

The Relational Algebra

The Relational Algebra. CONTENTS. 1 RELATIONAL ALGEBRA 2 UNARY RELATIONAL OPERATIONS * SELECT OPERATION * PROJECT OPERATION * RENAME OPERATION. Relational Algebra.

196 views • 13 slides

No-return functions

120 views • 5 slides