'New table' diaporamas de présentation

Chapter 5

Chapter 5. Normalization of Database Tables Database Systems: Design, Implementation, and Management, Sixth Edition, Rob and Coronel. In this chapter, you will learn:. What normalization is and what role it plays in the database design process

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Chapter 10

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Relational Database Design III

Relational Database Design III. Normalization:. A table is good if it is about one thing. A table is good if the only FDs are of the form Consider the table below with the following FDs. We know that its CKs are {A,F}, {B,F} and {C,F}. So R is a bad table with several bad FDs.

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GPSR: Greedy Perimeter Stateless Routing for Wireless Networks Brad Karp; Harvard University H. T. Kung; Harvard Univers

GPSR: Greedy Perimeter Stateless Routing for Wireless Networks Brad Karp; Harvard University H. T. Kung; Harvard University. Introduction.

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Understanding Backup Restore in SQL Server 2000 Pankaj Agarwal SQL Server Support Engineer SQL Support PSS NC Microsoft

Understanding Backup Restore in SQL Server 2000 Pankaj Agarwal SQL Server Support Engineer SQL Support PSS NC Microsoft Corporation Agenda Importance of backup/restore Database architecture overview File/filegroups Recovery models Discuss transaction log (log sequence number)

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Automating the Detection of Snapshot Isolation Anomalies

Automating the Detection of Snapshot Isolation Anomalies. Sudhir Jorwekar (IIT Bombay) Alan Fekete (Univ. Sydney) Krithi Ramamritham (IIT Bombay) S. Sudarshan (IIT Bombay). Presented By: Ajitav Sahoo (08305011). Motivation .

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Constraints

Constraints. Foreign Keys Local and Global Constraints Triggers. Constraints and Triggers. A constraint is a relationship among data elements that the DBMS is required to enforce. Example: key constraints.

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Database Normalization

Database Normalization. CP3410 Daryle Niedermayer, I.S.P., PMP. What is Normalization. Normalization allows us to organize data so that it: Allows faster access (dependencies make sense) Reduced space (less redundancy). Normal Forms.

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Roman Vocabulary

Roman Vocabulary . Directions: Copy the definitions to your vocabulary matrix. Write a sentence that shows understanding . 1. Mural . Definition: a painting on a wall (either inside or outside). Now your write a sentence using the word mural. 2. mosaic.

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Oracle 9i

Oracle 9i. Agenda. Start and exit SQL Plus (General) Start and exit SQL Plus (Tah 1006) Syntax Create a new user Create a new table Enter data into a new table Export & import data. Start and Exit SQL Plus. Start SQL Plus Start Select Program Select Oracle-ORACLE_9i

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Designing a simplified boot experience with modern firmware

SYS-003T. Designing a simplified boot experience with modern firmware. Tony Mangefeste Senior Program Manager Microsoft Corporation. With UEFI, the boot experience is fast, safe, and beautiful, leading to higher customer satisfaction and opportunity for product differentiation.

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CIS 338: VB.NET & Databases

CIS 338: VB.NET & Databases. Dr. Ralph D. Westfall November, 2009. What Is a Database?. shared collection of logically related data designed to meet needs of multiple users McFadden & Hofer, 1994. Database Advantages. less redundant than separate application files

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Access Tutorial 9 Using Action Queries and Advanced Table Relationships

Access Tutorial 9 Using Action Queries and Advanced Table Relationships. Objectives. Create an action query to create a table Create action queries to append, delete, and update data Define many-to-many and one-to-one relationships between tables Learn about joining tables

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First Order Logic

First Order Logic. Logic is a mathematical attempt to formalize the way we think. First-order predicate calculus was created in an attempt to mechanize reason. First Order Logical Representations. All zombies eat brains.

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Lecture 10

Bioinformatics. Lecture 10. Finding signals and motifs in DNA and proteins Expectation Maximization Algorithm MEME The Gibbs sampler. Finding signals and motifs in DNA and proteins.

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Hashing The Magic Container

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What To Do When Bullying is Happening

What To Do When Bullying is Happening . Strategies & Suggestions for Kids . Table of Contents. Definition of bullying The Stop Sign Strategy The Walk Away Strategy Asking an Adult for HELP Tattling vs. Reporting Dealing with Teasing Myths about Bullying References.

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Access Lesson 6 Integrating Access

Access Lesson 6 Integrating Access. Microsoft Office 2007: Introductory. Objectives. Import data from other Office programs into a database. Export data from a database to other Office programs. Create a form letter. Merge a form letter with a data source.

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Relate Command

Relate Command. Same as JOIN- all primary Used to establish relationship between 2 or more tables (up to 18 active relationships) No need to write results to another table Tables remain independent Requires less disk space. Relate Requirements. All tables within same ACL project

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