Kompetentsi Andmete modelleerimine knobit · K-904 · Teadmine
Explains identifying and non-identifying relationships
Mida see tähendab
Whether a child entity's key includes its parent's key, and dependent versus independent entities.
Kuidas seda hinnatakse
Classifies sample relationships as identifying or non-identifying and gives the child's key
Tugineb
- Explains candidate key and prime attributeK-552 · Teadmine