Question

What is the rdbms terminology for a set of legal values that an attribute can have ?

Answer 1

RDBMS:RELATION DATABASE MANAGEMENT SYSTEM.

Answer 2

The domain is the RDBMS terminology for a set of legal values that an attribute can have.

• In RDBMS, the set of permitted values is called domain.
• The value of the attribute should belong to the domain.
• Each attribute of relation can have permitted values that are contained in the domain.
• We can also say that domain is the datatypes that columns in a table can have.
• There are custom-type or built-in datatypes that define the constraints of data in a table.