WAEC - Data Processing (2019 - No. 21)
The diagram in Figure 5 depicts a
flat file database
hierarchical database
network database
parallel database
설명
The figure above depicts a network database model.
A network database is a model wherein multiple member records or files can be linked to multiple owner files and vice versa. The model can be viewed as an upside-down tree where each member's information is the branch linked to the owner, which is the bottom of the tree.