5. etapp: Loogilise andmemudeli tuletamine
Kompetentsi Andmete modelleerimine knobit · K-557 · Teadmine
Explains Boyce-Codd normal form
Mida see tähendab
Every determinant is a superkey; why a 3NF entity can still have anomalies.
Kuidas seda hinnatakse
Finds the BCNF violation in a 3NF entity with overlapping candidate keys
Tugineb
- Explains third normal formK-556 · Teadmine
Vajalik
- Recognises a non-superkey determinant in a 3NF entityK-511 · Oskus
- Explains multivalued dependency and fourth normal formK-558 · Teadmine