kinds of attributes single valued multi-valued derived etiketindeki yazılar
Ceng 351 / Database »
Entity ? Relationship model is a Database design tool for creating a diagram.
( ?entity? means record, object )
? Binary Relationship Set
? Ternary Relationship Set
There are kinds of attributes. Some of them is like that:
? Single valued attribute: at most one value
?Multi-valued attribute: 0 or more similar values. We don?t put them to the E-R diagram, but we can…
