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Figure 5.1 Hierarchy of data for a computer-based file.
Figure 5.2 Indexed sequential access method.
Figure 5.3 Computer based files in the traditional file environment cause problems such as redundancy due to partial or full duplication, inconsistency across files, and data isolation.
Figure 5.4 Database Management System (DBMS) provides access to all data in the database.
Figure 5.5 (a) Centralized database
Figure 5.5 (b) Distributed database with complete or partial copies of the central database in more than one location.
Figure 5.6 Entity-Relationship model
Figure 5.7 Non-normalized relation
Figure 5.8 Normalized relation
Figure 5.9 Hierarchical database model
Figure 5.10 Network database model
Figure 5.11 Table of relational database model
Figure 5.12 Data warehouse framework and views [Source: www.cutter.com and Data Management Strategies, Cutter Information Operations, February 1999.]
Figure 5.13 Relational databases
Figure 5.14 Multidimensional databases
Figure 5.15 Equivalence between relational and multidimensional databases
Figure 5.15 (Continued)
Technology Guide 3 Data & Database. Agenda Definition File processing problems Database Selection criteria.
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1 Data & Database Development. 2 Data File Bit Byte Field Record File Database Entity Attribute Key field Key file management concepts include:
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CHAPTER 5 Data and Knowledge Management. CHAPTER OUTLINE 5.1 Managing Data 5.2 Big Data 5.3 The Database Approach 5.4 Database Management Systems 5.5.
C6 Databases. 2 Traditional file environment Data Redundancy and Inconsistency: –Data redundancy: The presence of duplicate data in multiple data files.
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SESSION 7 MANAGING DATA DATARESOURCES. File Organization Terms and Concepts Field: Group of words or a complete number Record: Group of related fields.
Organizing Data and Information. What is Data?? Numbers, characters, images, or other method of recording, in a form which can be assessed by a human.
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Managing Data Resources. File Organization Terms and Concepts Bit: Smallest unit of data; binary digit (0,1) Byte: Group of bits that represents a single.
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3/6: Data Management, pt. 2 Refresh your memory Relational Data Model Hierarchical & Network Data Model Object-oriented DBMS Designing & Distributing a.
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MANAGING DATA RESOURCES ~ pertemuan 7 ~ Oleh: Ir. Abdul Hayat, MTI.
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7.1 © 2006 by Prentice Hall 7 Chapter Managing Data Resources.
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DataBase Management System What is DBMS Purpose of DBMS Data Abstraction Data Definition Language Data Manipulation Language Data Models Data Keys Relationships.
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CSCI-235 Micro-Computers in Science Databases. Database Concepts Data is any unorganized text, graphics, sounds, or videos A database is a collection.
1 California State University, Fullerton Chapter 7 Information System Data Management.
Chapter # 04Information and Databases Information and Database.
P449. p450 Figure 15-1 p451 Figure 15-2 p453 Figure 15-2a p453.
Managing data Resources: An information system provides users with timely, accurate, and relevant information. The information is stored in computer files.
Database Theory Why use database? Data is a valuable corporate resource which needs adequate accuracy, consistency and security controls. The centralized.
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Chapter 4 Database Management Systems. Chapter 4Slide 2 What is a Database Management System (DBMS)? Database An organized collection of related data.
1 Data & Databases Technology Guide 3. 2 File Management Bit Byte Field Record File Database Entity Attribute Key field Key file management concepts include:
6.1 © 2010 by Prentice Hall 6 Chapter Foundations of Business Intelligence: Databases and Information Management.
History of Implementation Data Models. Databases were: Early Business Computer Systems –Accounting functions - payroll, profit/loss statements Files of.
Managing Data Resources Lecture 5 Managing Data Resources Lecture 5.
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