5. etapp: Loogilise andmemudeli tuletamine
Kompetentsi Andmete modelleerimine knobit · K-535 · Oskus
Replaces a repeating group with a dependent entity
Mida see tähendab
Moves numbered or listed attributes into an entity of their own, so any number of occurrences can be recorded.
Kuidas seda hinnatakse
Every repeated property moves to the new entity, which has its own identifier and no fixed upper limit
Tugineb
- Explains first normal formK-554 · Teadmine
- Explains identifying and non-identifying relationshipsK-904 · Teadmine
Vajalik
- Puudub