Tag Archives: Functional

Summary – FDs so far • X
A – X ”determines” A, A ”depends on” X • Trivial FDs, combining RHSs • Computing closures – Attribute closures: X+ – FD set closures: F+ lecture4.pdf dosyayı indir

Functional dependencies (FDs) • X
A – ”X determines A”, ”X gives A” – ”A depends on X” • X is a set of attributes, A is a single attribute • Examples: – code
name – code, period
teacher lecture3.pdf dosyayı indir