6. etapp: Füüsilise andmemudeli kujundamine
Kompetentsi Andmete modelleerimine knobit · K-660 · Teadmine
Explains vertical and horizontal partitioning of tables
Mida see tähendab
Splitting a table by columns or rows, and what keeps the parts one entity.
Kuidas seda hinnatakse
Decides for sample splits whether they stay lossless and constrained
Tugineb
- Explains lossless-join decompositionK-563 · Teadmine
Vajalik
- Recognises a lossy or unconstrained vertical splitK-604 · Oskus
- Recognises an entity split into clone tables by valueK-605 · Oskus