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multi table database design outgrowing your table

Database Design Using Entity-Relationship Diagrams

Database Design Using Entity-Relationship Diagrams

Tin học văn phòng

... supplemental text in database courses, systems analysis and design courses, and other courses that design and implement databases Many present-day database and systems analysis and design books limit ... students in database classes and to help database practitioners in understanding how to arrive at a definite, clear database design using an entity relationship (ER) diagram In designing a database ... model has allowed the database designer to focus on the logical and physical characteristics of a database separately This book concentrates on techniques for database design, with a very strong...
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Apress - Pro SQL Server 2008 Relational Database Design and Implementation (2008)01

Apress - Pro SQL Server 2008 Relational Database Design and Implementation (2008)01

Cơ sở dữ liệu

... Relational Database Design and Implementation Louis Davidson With Kevin Kline, Scott Klein, and Kurt Windisch 8662FM.qxp 7/28/08 6:19 PM Page ii Pro SQL Server 2008 Relational Database Design and ... xxiii s CHAPTER Introduction to Database Concepts Database Design Phases Conceptual ... CHAPTER Implementing the Base Table Structures 177 Reviewing the Logical Design 181 Transforming the Design ...
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Apress - Pro SQL Server 2008 Relational Database Design and Implementation (2008)02

Apress - Pro SQL Server 2008 Relational Database Design and Implementation (2008)02

Cơ sở dữ liệu

... time of this writing Purpose of Database Design What is the purpose of database design? Why the heck should you care? The main reason is that a properly designed database is straightforward to ... on four editions of a book on database design Louis’s primary areas of interest are database architecture and coding in T-SQL, and he has experience designing many databases and writing thousands ... elegant database design makes the data obvious and easy to query and sets up the developer for success with efficient setbased queries But, no amount of code can compensate for a poor database design...
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Apress - Pro SQL Server 2008 Relational Database Design and Implementation (2008)03

Apress - Pro SQL Server 2008 Relational Database Design and Implementation (2008)03

Cơ sở dữ liệu

... structure for the databases is referred to as the schema Tables, Rows, and Columns The object that will be involved in all your designs and code is the table In your designs, a table will be used ... Physical Table 1-1 lists all of the names that tables are given from the various viewpoints 8662Ch01.qxp 10 7/28/08 3:37 PM Page 10 CHAPTER s INTRODUCTION TO DATABASE CONCEPTS Table 1-1 Table Term ... many database systems (such as Microsoft FoxPro), each operating system file represents a table (sometimes a table is actually referred to as a database, which is just way too confusing) Multiple...
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Apress - Pro SQL Server 2008 Relational Database Design and Implementation (2008)04

Apress - Pro SQL Server 2008 Relational Database Design and Implementation (2008)04

Cơ sở dữ liệu

... Ideally, you are looking for something that is stable, that you can control, and that is definitely going to allow you to uniquely identify every row in your database One thing of interest here is that ... considered a natural key in your database is often not actually a natural key in the place where it is defined, for example, the driver’s license number of a person In the example database, this is a ... probably isn’t going to take kindly to being called Les for short just so your database system isn’t compromised One notable profession where names must be unique is acting No two actors who have...
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Tài liệu overview of data modeling and database design pptx

Tài liệu overview of data modeling and database design pptx

Cơ sở dữ liệu

... perform to achieve the best possible database design Database Design Database design is just one of the stages of the development cycle Through good database design, you can achieve a reliable, ... and Database Design 8Ć27 8Ć28 Introduction to Oracle: SQL and PL/SQL Using Procedure Builder Designing the Database The database design stage produces design specifications for a relational database, ... transformed into tables in the database All forms of design involve a mixture of rules, judgements, and common sense, and relational design is no different During a design effort, your goal is to design...
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Tài liệu overview of data modeling and database design pdf

Tài liệu overview of data modeling and database design pdf

Cơ sở dữ liệu

... perform to achieve the best possible database design Database Design Database design is just one of the stages of the development cycle Through good database design, you can achieve a reliable, ... transformed into tables in the database All forms of design involve a mixture of rules, judgements, and common sense, and relational design is no different During a design effort, your goal is to design ... Using Procedure Builder Designing the Database The database design stage produces design specifications for a relational database, including definitions for relational tables, indexes, views,...
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Tài liệu Pro SQL Sever 2012 Relational Database Design and Implementation ppt

Tài liệu Pro SQL Sever 2012 Relational Database Design and Implementation ppt

Cơ sở dữ liệu

... basics of database design? The first five chapters of this book are devoted to the fundamental tasks of relational database design and preparing your mind for the task at hand: designing databases ... time of this writing Purpose of Database Design What is the purpose of database design? Why the heck should you care? The main reason is that a properly designed database is straightforward to ... file represents a table (sometimes a table is actually referred to as a database, which is just way too confusing) Multiple files make up a database 13 CHAPTER ■ The Fundamentals Table 1-2 Column...
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Tài liệu Physical Database Design for Relational Databases docx

Tài liệu Physical Database Design for Relational Databases docx

Cơ sở dữ liệu

... The designer specifies the tables in Tdesign,and DBDSGN suggests index designs for those tables All other tables are in Terist, and existing indices are used for them If the indices to the tables ... be evaluated, database is to be loaded, ACM Transactions on Database Systems, Vol 13, No 1, March 1988 Physical Database Design for Relational Databases l 93 -the workload on a database changes ... sets Texist and Tdesign The indices that already exist in the database for tables in Texist are not be be altered For example, the designer may not be authorized to redesign those tables (e.g.,...
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DATABASE DESIGN PRIMER A BEGINNERS GUIDE TO CREATING A DATABASE doc

DATABASE DESIGN PRIMER A BEGINNERS GUIDE TO CREATING A DATABASE doc

Cơ sở dữ liệu

... 2.1 Tables Tables can be described as either major or minor Major tables are the important, dynamic tables of a situation Addition and deletion of data from these tables are common Minor tables ... cover Tables are characterized by attributes Do not confuse tables with instances of the table Ground cover is a valid table; litter, bare ground, and red oak are instances of that table A table ... Figure 1: Database Window A new dialog will appear showing the new table options (Figure 2) Select the Design View option and click the OK button Figure 2: New Table Options The table design view...
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Relational Database Management Systems, Database Design, and GIS pptx

Relational Database Management Systems, Database Design, and GIS pptx

Cơ sở dữ liệu

... of data Design Business Information Requirements Strategy Analysis Conceptual Data Modeling Entity-Relationship Data Model Entity Definitions Database Design Build Design Database Build Table Definitions ... Design Build Function Design Database Build Application Cross-Checking Table Definitions Index, View, Cluster, and Space Definitions Operational Database Design Module Designs Application Build ... ShapeFile) • Overview of GIS Database Design • Continuous, non-tiled, spatial database for adding spatial data to a relational database management system (RDBMS) • Database interface that couples...
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Access Database Design & Programming, 3rd Edition pot

Access Database Design & Programming, 3rd Edition pot

Kỹ thuật lập trình

... from a database, a database designer must split the data into multiple tables Here is one possibility for the LIBRARY_FLAT example, which splits the original database into four separate tables ... anomalies, a database needs to contain multiple tables with relationships defined between these tables On the other hand, this raises some issues, such as how to design the tables in the database ... (PubID, PubName, PubPhone) The actual tables are shown in Tables Table 3-3 through Table 3-6 10 11 12 13 Table 3-3 The AUTHORS table from the Access LIBRARY database AuID AuName AuPhone Austen...
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Relational Database Design and Implementation for Biodiversity Informatics docx

Relational Database Design and Implementation for Biodiversity Informatics docx

Cơ sở dữ liệu

... requirements collection) Design (Conceptual database design, leading to information model, physical database design [including system architecture], user interface design) Implement (Database implementation, ... database life cycle many times In this paper, I will focus on a few parts of the database life cycle: the conceptual and logical design of a database, physical design, implementation of the database ... have their own places in the design and implementation phases of the database life cycle Relational Database Design Why spend time on design? The answer is simple: Poor Design + Time = Garbage As...
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o'reilly - access database design & programming 3rd edition

o'reilly - access database design & programming 3rd edition

An ninh - Bảo mật

... from a database, a database designer must split the data into multiple tables Here is one possibility for the LIBRARY_FLAT example, which splits the original database into four separate tables ... anomalies, a database needs to contain multiple tables with relationships defined between these tables On the other hand, this raises some issues, such as how to design the tables in the database ... using instead a relational -database design consisting of multiple tables But because relational -database 11 TEAM FLY PRESENTS applications divide data into multiple tables, it is necessary to reconstitute...
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Beginning Database Design ppt

Beginning Database Design ppt

Cơ sở dữ liệu

... in relational database tables set up according to the design in Figure 2-14 Table Genus Table Species (The value of genus must be one of the values in the Genus table) Table Use Table PlantUse ... problems as the tables in Examples 1-1 and 1-2, but that can be addressed We will return to this example in Chapter Table Fields Table Visits Table Counts Figure 1-5 An improved database design for ... model into a database design You’ll learn to design better databases You’ll avoid the cost of “getting it wrong.” Create a Data Model The chasm between having a basic idea of what your database needs...
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Database Design by Ryan K. Stephens Ronald R. Plew pdf

Database Design by Ryan K. Stephens Ronald R. Plew pdf

Cơ sở dữ liệu

... the ID in Table might occur multiple times in Table as a foreign key, and the ID in Table might occur multiple times in Table Table Table ID FK VALUE A A B B One-to-one VALUE C C Table Table ID ... Sample Physical Database Implementation 447 B Popular Database Design Tools C Database Design Checklists 465 Planning Database Design 466 Gathering Information to Design the Database ... in Database Design 247 Process Models for the Sample Company TrainTech 249 Summary 254 Designing the Database 257 Designing Tables 259 Types of Tables 260 Data Tables...
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Database Design for Real-World doc

Database Design for Real-World doc

Cơ sở dữ liệu

... separate table In Figure, we showed them in User Account for the lack of space A typical real-world database schema for e-commerce systems are divided into multiple databases run by different database ... structure of e-commerce database systems will help the database designers effectively develop and maintain the system, regardless of the approach taken From the database design point of view, an ... components of e-commerce database systems We then present the detailed database schema of an e-commerce transaction processing (ECTP) system and discuss a few database design considerations specific...
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beginning database design 2006

beginning database design 2006

Cơ sở dữ liệu

... Beginning Database Design Gavin Powell Beginning Database Design Beginning Database Design Gavin Powell Beginning Database Design Published by Wiley Publishing, Inc ... The object and object-relational database models ❑ Database model types ❑ Database design objectives ❑ Database design methods Grasping the Concept of a Database A database is a collection of information ... Understanding Database Model Design Do you really need to design stuff? When designing a computer system or a database model, you might wonder why you need to design it And exactly what is design? Design...
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database design manual using mysql for windows 2004

database design manual using mysql for windows 2004

Cơ sở dữ liệu

... Figure 4.8 Selecting a database from the dropdown list Chapter • Designing and Creating Tables 39 CREATE TABLE After you have designed your database, you need to define the tables in MySQL The main ... communicate with databases Database Design Manual: using MySQL for Windows If you are a web designer this book should also appeal if you want to see how the database can influence your web design You ... a database The database is the container in which we store the tables You create the database using the following command: CREATE DATABASE databasename Once you have created the database you have...
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