functional dependency
functional dependency · functional dependencies
funktionale Abhängigkeit
Given a relation R and two sets of attributes X,Y⊆R, a constraint X→Y where each X…Given a relation R and two sets of attributes X,Y⊆R, a constraint X→Y where each X value in R is associated with precisely one Y value in R.
Meaning
1 sensesGiven a relation R and two sets of attributes X,Y⊆R, a constraint X→Y where each X value in R is associated with precisely one Y value in R.
funktionale Abhängigkeit
Translations
2 languagesDeutsch
By meaning 1
constraint between two sets of attributes in a relation:
Forms
plural: functional dependencies| Singular | functional dependency |
|---|---|
| Plural | functional dependencies |
regular