We Talk Coding
What is a relational model referring to databases?
Studying for my databases class, was hoping you guys could help.
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- Wikipedia does a pretty good job describing a relational model (see link below).
- A database can be understood as a collection of related files. How those files are related depends on the model used. Early models included the hierarchical model (where files are related in a parent/child manner, with each child file having at most one parent file), and the network model (where files are related as owners and members, similar to the network model except that each member file can have more than one owner). The relational database model was a huge step forward, as it allowed files to be related by means of a common field. In order to relate any two files, they simply need to have a common field, which makes the model extremely flexible. Read this presentation http://olaf.crema.unimi.it/bdsuppl.ppt
