'Relation schemas' presentation slideshows

CS 328 Database Systems Chapter 8: SQL

CS 328 Database Systems Chapter 8: SQL. Introduction. Full name of SQL --- S tructural Q uery L anguage Old name --- SEQUEL (Structural English QUEry Language) First developed at IBM's San Jose (now Almaden) Research Lab. in 1974. Over 100 SQL-based products in the market.

1.4k views • 119 slides

Module 6

Module 6. Relational Database Design. Topics to be covered. Pitfalls in relational database design Functional dependencies Armstrong Axioms Decomposition Desirable properties of decomposition Boyce-code normal form 3 rd and 4 th normal form Mention of other normal forms.

1.04k views • 90 slides

Module 6

Module 6. Relational Database Design. Topics to be covered. Pitfalls in relational database design Functional dependencies Armstrong Axioms Decomposition Desirable properties of decomposition Boyce-code normal form 3 rd and 4 th normal form Mention of other normal forms.

1.15k views • 90 slides

Chapter 8 Functional Dependencies and Normalization for Relational Databases

Chapter 8 Functional Dependencies and Normalization for Relational Databases. Chapter Outline. 1 Informal Design Guidelines for Relational Databases 1.1Semantics of the Relation Attributes 1.2 Redundant Information in Tuples and Update Anomalies 1.3 Null Values in Tuples

987 views • 78 slides

CS 728 Advanced Database Systems Chapter 14

CS 728 Advanced Database Systems Chapter 14. Database Design Theory: Introduction to Normalization Using Functional & Multivalued Dependencies. Design Guidelines for Relation Schemas. 1. Attributes should have clear meanings (semantics) and related attributes are grouped into single entities.

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Announcements

670 views • 60 slides

Chapter 10

Chapter 10. Functional Dependencies and Normalization for Relational Databases. Informal Design Guidelines for Relation Schemas (1/4).

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Chapter 15 Basics of Functional Dependencies and Normalization for Relational Databases

Chapter 15 Basics of Functional Dependencies and Normalization for Relational Databases. Introduction. Levels at which we can discuss goodness of relation schemas Logical (or conceptual) level how users interpret the relation schemas and the meaning of their attributes

659 views • 50 slides

Chapter 5 Relational Model Concepts

Chapter 5 Relational Model Concepts. Dr. Bernard Chen Ph.D. University of Central Arkansas Fall 2008. Relational Model Concepts. A Relation is a mathematical concept based on the ideas of sets The model was first proposed by Dr. E.F. Codd of IBM Research in 1970 in the following paper:

600 views • 45 slides

Relational Database Design

Relational Database Design. Relational Database Design. Each relation schema consists of a number of attributes Database schema consists of a number of such relation schemas Relational database design ultimately produces a set of relations

600 views • 44 slides

Chapter 5 Relational Model Concepts

Chapter 5 Relational Model Concepts. Dr. Bernard Chen Ph.D. University of Central Arkansas. Relational Model Concepts. A Relation is a mathematical concept based on the ideas of sets The model was first proposed by Dr. E.F. Codd of IBM Research in 1970 in the following paper:

548 views • 44 slides

Chapter 14

Chapter 14 Database Design Theory: Introduction to Normalization Using Functional and Multivalued Dependencies. Chapter 14 Outline. Informal Design Guidelines for Relation Schemas Functional Dependencies Normal Forms Based on Primary Keys General Definitions of Second and Third Normal Forms

568 views • 41 slides

Chapter 15 Basics of Functional Dependencies and Normalization for Relational Databases

Chapter 15 Basics of Functional Dependencies and Normalization for Relational Databases. Chapter 15 Outline. Informal Design Guidelines for Relation Schemas Functional Dependencies Normal Forms Based on Primary Keys General Definitions of Second and Third Normal Forms

526 views • 40 slides

Functional Dependencies and Normalization for Relational Databases

Functional Dependencies and Normalization for Relational Databases. Chapter Outline. Informal Design Guidelines for Relational Databases Semantics of the Relation Attributes Redundant Information in Tuples and Update Anomalies Null Values in Tuples Spurious Tuples

540 views • 40 slides

Relational Model

Relational Model. Table = relation . Column headers = attributes . Row = tuple Beers Relation schema = name(attributes) + other structure info., e.g., keys, other constraints. Example: Beers(name, manf)

434 views • 33 slides

Chapter 1: Introduction

Chapter 1: Introduction Chapter 1: Introduction Purpose of Database Systems View of Data Database Languages Relational Databases Database Design Object-based and semistructured databases Data Storage and Querying Transaction Management Database Architecture

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Lecture 22

Lecture 22. Functional Dependencies (FDs) and Normalization. Schedule Change. http://www.users.csbsju.edu/~irahal/. The Database Design Process. Conceptual design : Use a data model language to come up with an accurate, high-level description of the system requirements

622 views • 29 slides

CSC271 Database Systems

CSC271 Database Systems. Lecture # 5. Summary: Previous Lecture. Database languages Functions of a DBMS DBMS environment Data models and their categories. The Relational Model. Chapter 3. History of Relational Model. Proposed by E.F. Codd in 1970

403 views • 24 slides

Chapter 5

Chapter 5. The Relational Data Model and Relational Database Constraints. Informal Definitions. Informally, a relation looks like a table of values. A relation typically contains a set of rows .

355 views • 19 slides

METU Department of Computer Eng Ceng 302 Introduction to DBMS Further Dependencies

METU Department of Computer Eng Ceng 302 Introduction to DBMS Further Dependencies. by Pinar Senkul resources: mostly froom Elmasri, Navathe and other books. Outline. Multivalued Dependencies and Fourth Normal Form Join Dependencies and Fifth Normal Form .

404 views • 13 slides