The following slides discuss various database models.

Slide 5.1: Historical development of databases
Slide 5.2: Network data model
Slide 5.3: Relational data model
Slide 5.4: Limitations of relational data model
Slide 5.5: Object-oriented data model
Slide 5.6: Object-relational data model
Slide 5.7: Database market share
Slide 5.8: Database market share (cont.)
Slide 5.9: Database market share (cont.)
Slide 5.10: Whatever happened to object-oriented databases?
Slide 5.11: NoSQL data model
Slide 5.12: NoSQL data model (cont.)

  ☂ References

Slide 4.a: How to build a website
Slide 4.b: What are databases?






      I always arrive late at the office,    
      but I make up for it by leaving early.