Lesson: Introduction to Databases

Objectives

  • Understand why we use databases?
  • Understand what Tables, Rows, & Columns represent.
  • Know what primary keys and foreign keys are.
  • Know the difference between database relationship types.
  • Practice drawing Entity Relationship Diagrams (ERD).

Lab: Entity Reference Diagrams

Objectives

  • Draw entity relationship diagrams with crow's foot notation for ideas for Android apps
  • Describe how tables relate to each other using foreign keys
  • Explain the different relationship types – 1:1, 1:many, many:many

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