Column

A named part of a table that holds values from a defined data type or domain.

What is Column in a relational database?

Column — A named part of a table that holds values from a defined data type or domain.

CREATE TABLE customer (
    customer_id INTEGER PRIMARY KEY,
    email CHARACTER VARYING(255) NOT NULL,
    status CHARACTER VARYING(20) DEFAULT 'active'
);

Level: Novice · More Database terms at this level

Updated September 27, 2026