Which term describes the fundamental unit of data that characterizes an entity, such as its datatype and size?

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Multiple Choice

Which term describes the fundamental unit of data that characterizes an entity, such as its datatype and size?

Explanation:
Think of a database in terms of entities and their properties. The property that describes what data an entity holds, including its datatype and size, is an attribute. An attribute specifies the datatype (such as integer, varchar, date) and its size (like varchar(50) or a fixed numeric precision). This is how each column in a table defines what kind of value can appear there and how much space it uses. Other terms play different roles: a constraint is a rule that enforces validity, a block is a storage unit, and a clause is part of an SQL statement. So the fundamental unit describing an entity with its datatype and size is an attribute.

Think of a database in terms of entities and their properties. The property that describes what data an entity holds, including its datatype and size, is an attribute. An attribute specifies the datatype (such as integer, varchar, date) and its size (like varchar(50) or a fixed numeric precision). This is how each column in a table defines what kind of value can appear there and how much space it uses. Other terms play different roles: a constraint is a rule that enforces validity, a block is a storage unit, and a clause is part of an SQL statement. So the fundamental unit describing an entity with its datatype and size is an attribute.

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