6. etapp: Füüsilise andmemudeli kujundamine
Kompetentsi Andmete modelleerimine knobit · K-659 · Teadmine
Explains grain and additivity in dimensional models
Mida see tähendab
One row means one thing; measures are additive, semi-additive or non-additive.
Kuidas seda hinnatakse
States the grain of sample fact tables and the additivity of their measures
Tugineb
- Explains dimensional modellingK-905 · Teadmine
Vajalik
- Recognises a fact table of mixed grainK-626 · Oskus
- Recognises a measure without stated additivityK-627 · Oskus