Codd describe as necessary to retrieve a data value from a relational database?

Which three pieces of information did E.F. Codd describe as necessary to retrieve a data value
from a relational database?

A.
Attribute, domain, andtuple

B.
Entity, relation name, and domain

C.
Table name, primary key, and entity

D.
Attribute, relation name, and primary key

Discussion

One Response to “Codd describe as necessary to retrieve a data value from a relational database?”

  1. Chicco says:

    D is correct. Remember that relation name is equivalent to table.

    https://en.wikipedia.org/wiki/Table_(database)

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