Microsoft® SQL Server® 2012 Bible
147 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 Implementing a database without working th ...
148 Part II: Building Databases and Working with Data ■ (^) Usability: By placing columns in the correct table, it’s easier to u ...
149 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 The goal is to simply collect all the poss ...
150 Part II: Building Databases and Working with Data ■ (^) The additional tables create additional work at every layer of the s ...
151 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 Best Practice Granted, knowing when to gen ...
152 Part II: Building Databases and Working with Data FIGURE 7-2 A one-to-many relationship consists of a primary entity and a s ...
153 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 TABLE 7-2 Common Relationship Cardinalitie ...
154 Part II: Building Databases and Working with Data Some rare situations call for a complex optionality based on a condition. ...
155 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 When the entities — nouns and verbs — are ...
156 Part II: Building Databases and Working with Data One-to-One Pattern At the conceptual diagram layer, one-to-one relationshi ...
157 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 FIGURE 7-6 The many-to-many logical model ...
158 Part II: Building Databases and Working with Data Figure 7-8 shows the associative entity with data to illustrate how it has ...
159 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 Supertype/Subtype Pattern One design patte ...
160 Part II: Building Databases and Working with Data Although you can use separate entities for customers and vendors, an alter ...
161 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 The classic example is the state, or regio ...
162 Part II: Building Databases and Working with Data FIGURE 7-12 The conceptual diagram of a many-to-many recursive relationshi ...
163 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 Entity-Value Pairs Pattern Entity -value p ...
164 Part II: Building Databases and Working with Data Database Design Layers Every database can be visualized as three layers: d ...
165 Chapter 7: Relational Database Design and Creating the Physical Database Schema 7 Don’t plan to design an entity and move it ...
166 Part II: Building Databases and Working with Data TABLE 7- 4 Conforming to the First Normal Form PhoneNumber Entity Customer ...
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