|
|
|
|
|
|
by jdblair
1761 days ago
|
|
|
The author skips the first decade of database systems in the 1960s. The oldest databases were not relational! They were hierarchical or navigational. Hierarchical databases were much like a filesystem, but for records instead of files. Navigational databases allowed data to be linked in a network. Look up CODASYL for detail. The relational database design was first proposed in the 1970s. |
|
|