'Normal form 1nf' presentation slideshows

Part3 Database Analysis and Design Techniques Chapter 06- Theory of Relational Database

Part3 Database Analysis and Design Techniques Chapter 06- Theory of Relational Database. Lu Wei College of Software and Microelectronics Northwestern Polytechnical University. Database Systems. Outline. Potential Problems in a Base Relation The concept of Normalization

1.17k views • 116 slides

CSE544 Data Modeling, Conceptual Design

CSE544 Data Modeling, Conceptual Design. Wednesday, April 7, 2004. Outline. ER diagrams (Chapter 2) Conceptual Design (Chapter 19). Database Design. Data Modeling. SQL Tables. Refinement. Files. E/R diagrams. Relations. name. buys. Person. Product. price. name. ssn.

790 views • 78 slides

Chapter 7

Chapter 7. Normalization. Chapter 14 & 15 in Textbook. Database Design. Steps in building a database for an application:. Real-world domain. Conceptual model. DBMS data model. Create Schema (DDL). Modify data (DML). How to produce a good relation schema?.

581 views • 57 slides

11. Normalization

Section 11. 11. Normalization. Database Design is the process of finding a "good" logical structure for the database. So far, design has been maintaining well-defined relations and choosing good primary keys. Here is a review of some of the definitions:

402 views • 40 slides

Normalization

Normalization. Database Design is the process of finding a "good" logical structure for the database. So far, design criteria has been just maintaining well-defined relations and choosing good primary keys. Here is a review of some of the definitions:

471 views • 38 slides

Chapter 13

Chapter 13. Normalization Transparencies. Chapter 13 - Objectives. Purpose of normalization. Problems associated with redundant data. Identification of various types of update anomalies such as insertion, deletion, and modification anomalies.

318 views • 31 slides

Database Management Fall 2003 Normalization Chapter 8

418 views • 22 slides

Avoiding Database Anomalies

Avoiding Database Anomalies. Unnormalized Relation. 3a. First Normal Form (1NF). A relation is in first normal form if it does not contain repeating groups. Unnormalized Relation. First Normal Form (1NF). Changes to service names have to be made on each line on which the the name appears.

423 views • 17 slides

Avoiding Database Anomalies

Avoiding Database Anomalies. Unnormalized Relation. 3a. First Normal Form (1NF). A relation is in first normal form if it does not contain repeating groups. Unnormalized Relation. First Normal Form (1NF). Changes to service names have to be made on each line on which the the name appears.

180 views • 17 slides

1NF, 2NF, and 3NF

1NF, 2NF, and 3NF. By Vishal Punjabi. Basics. Lets first review Superkey Candidate Key Primary Key. Superkey. A set of one or more attributes, which taken collectively, uniquely identifies a tuple of a relation is referred to as a the superkey of the relation schema. Example.

252 views • 15 slides

Normalization

Normalization. Normalization. We will take a look at First Normal Form Second Normal Form Third Normal Form There are also Boyce-Codd, Fourth and Fifth normal forms In most cases the first three normal forms are enough. normalization. Why normalization Avoid redundancy

338 views • 14 slides

11. Normalization

11. Normalization. Database Design is the process of finding a "good" logical structure for the database. So far, design has been maintaining well-defined relations and choosing good primary keys. Here is a review of some of the definitions:

146 views • 14 slides

5 . Database Design

CSCI N207 Data Analysis Using Spreadsheets. 5 . Database Design. Lingma Acheson Department of Computer and Information Science IUPUI. What Design is About. You are hired by a small business, and are asked to build a database system. How would you proceed?

118 views • 11 slides