'Primary key' presentation slideshows

Chapter 25 Relational Databases

Chapter 25 Relational Databases. Chapter Goals. To understand how relational databases store information To learn how to query a database with the Structured Query Language (SQL) To connect to databases with Java Database Connectivity (JDBC)

1.47k views • 118 slides

Lecture 6: Query Processing; Hurry up!

Lecture 6: Query Processing; Hurry up!. Join Algorithms (ctd.) Sort-Merge External Sorting Costs and Complexities Mechanics Parsing Optimization. Overview EXPLAIN Measuring Performance Disk Architectures Indexes Motivation, Definition, Demonstration Classification

938 views • 69 slides

Systems for Business Enterprises Introduction

779 views • 62 slides

Chapter 6 Database Design

Chapter 6 Database Design. Database Systems: Design, Implementation, and Management 4th Edition Peter Rob & Carlos Coronel. Changing Data into Information. Data are the raw facts that are stored in databases. Raw facts are seldom immediately useful to a decision maker.

1.12k views • 56 slides

Chapter 10 Designing Databases

Modern Systems Analysis and Design Fourth Edition Jeffrey A. Hoffer Joey F. George Joseph S. Valacich. Chapter 10 Designing Databases. Learning Objectives. Define key database design terms. Explain the role of database design in the IS development process.

1.15k views • 55 slides

Chapter 12: Designing Databases

12. Chapter 12: Designing Databases. Systems Analysis and Design in a Changing World, Fourth Edition. Learning Objectives. Describe the differences and similarities between relational and object-oriented database management systems

826 views • 55 slides

CHAPTER 4

CHAPTER 4. DATABASES AND DATA WAREHOUSES A Gold Mine of Information. 4-2. Introduction. Today, Organizations Need. Information to compete effectively Information just to stay alive in the information age Information organized in such a way that you can easily and quickly get to it

770 views • 50 slides

Database Design: The Quick and Easy Way (Well, Mostly)

Mac Newbold mac@macnewbold.com www.codegreene.com UPHPU, November 17, 2006. Database Design: The Quick and Easy Way (Well, Mostly). Why Do We Care?. The database is the core of a web application Almost everything depends on it

652 views • 45 slides

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? 10 ?. ?? ???? ??. ?? ??. ????? ??? ??? ??? ???? ?? ?? ???? ?? - ?? ??? ?? STAR schema ?? ???? ?? ???? ?? ?? ??? ?????? ?? STAR ???? ??. 10.1 ???????? ??? ???? . ????? ??? ??? ?????? ?? ??? ??? ???? . ??? ??? ?? ???? ???? ? ? ??? ??? ???? ??? ?? ??? ???? .

713 views • 44 slides

Chapter 5 Normalization of Database Tables

Chapter 5 Normalization of Database Tables. Database Tables and Normalization. Normalization is a process for assigning attributes to entities. It reduces data redundancies and helps eliminate the data anomalies. Normalization works through a series of stages called normal forms:

943 views • 40 slides

Normalizing Your Database and Why you WANT to do it!

INFYS540 Normalizing Your Database and Why you WANT to do it! Lesson 7 Chapter 5 Appendix Data Redundancy Problems Redundancy breeds errors Same data defined in multiple places is BAD Spelling/typographical error prone Lack of data integrity Inability to perform simple queries

699 views • 39 slides

Database Normalization

968 views • 32 slides

Ch 6: ER to Relational Mapping

Ch 6: ER to Relational Mapping. Much of the material presented in these slides was developed by Dr. Ramon Lawrence at the University of Iowa. ER Model to Relational Schemas. These notes will describe how to convert an ER diagram into a corresponding relational schema.

811 views • 29 slides

MS SQL Sever 2005

MS SQL Sever 2005. SQL Sever Management Studio Express. Introduction. Installation At home With software package Without Login in Building Database At home Working with SQL Differences Notes Other resources . Installation .

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Project and Data Management Software

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340 views • 17 slides

Data Models Example: A relation is a table.

580 views • 15 slides

A Very Brief Introduction to Relational Databases

A Very Brief Introduction to Relational Databases. Chuck Cusack Spring 2004. Course Roster File #1. Consider an instructor who wishes to store a list of his courses and students enrolled in those courses. Below is how he might store the information in a file

407 views • 12 slides

Chapter (9) ER and EER-to-Relational Mapping, and other Relational Languages Objectives

Chapter (9) ER and EER-to-Relational Mapping, and other Relational Languages Objectives How a relational database schema can be created from a conceptual schema developed using the ER models.

614 views • 12 slides

Chapter 14 & 15 Conceptual & Logical Database Design Methodology

Chapter 14 & 15 Conceptual & Logical Database Design Methodology. Definition Conceptual database design Relational database - logical design Relational database - physical design Relational database - operation Example. Definition. Design methodology

662 views • 10 slides