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Database Design

Database Design. Jennifer Dilly Ferris State University September 25, 2011. Table of Contents. Overview of Relational Database Theory Database design example Description/overview Design standards Rationale Normalization examples. Overview of Relational Database Theory.

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Database Design

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  1. Database Design Jennifer Dilly Ferris State University September 25, 2011

  2. Table of Contents • Overview of Relational Database Theory • Database design example • Description/overview • Design standards • Rationale • Normalization examples

  3. Overview of Relational Database Theory • What are relational databases? • Useful why? • How is structure important?

  4. Database Design Example - Description How to start What data is needed?

  5. Database Design Example – Standards /Rationales Naming Atomic data Keys Primary (PK) Foreign (FK)

  6. Database Design Example – Standards /Rationale Referential integrity Datatypes Indexes

  7. Examples of Normalization“Key” dependency Violation Correction

  8. Examples of NormalizationNo repeating groups Violation Correction

  9. Examples of NormalizationNo redundant data Violation Correction

  10. Summary • Overview of Relational Database Theory • Database design • Standards • Rationale • Normalization examples

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