The following slides discuss various database models.

Slide 4.1: Historical development of databases
Slide 4.2: Network data model
Slide 4.3: Relational data model
Slide 4.4: Limitations of relational data model
Slide 4.5: Object-oriented data model
Slide 4.6: Object-relational data model
Slide 4.7: Market share of database management software
Slide 4.8: Whatever happened to object-oriented databases?
Slide 4.9: NoSQL data model
Slide 4.10: NoSQL data model (cont.)



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