PostgreSQL_CE
PGCES-02 · Question #100
Select one incorrect statement concerning the relational data model.
The correct answer is D. It is made up of a multiple stage hierarchy where each of the set elements has parent child. See the full explanation below for the reasoning.
Question
Select one incorrect statement concerning the relational data model.
Options
- AIt expresses the real world in a collection of 2-dimensional tables called a relation.
- BIt is a model based on set theory.
- CIt has a logical structure independent of physical data structure.
- DIt is made up of a multiple stage hierarchy where each of the set elements has parent child
- EIt is a model that was proposed by E.F. Codd in 1970.
How the community answered
(22 responses)- B9% (2)
- C5% (1)
- D73% (16)
- E14% (3)
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