In a relation, the order of the columns does not matter.

More Questions from The Relational Model and Normalization

• A relation has cells that hold multi-value entries.
• Relations are categorized into normal forms according to the referential integrity constraints that they have.
• A functional dependency is always an equation.
• A key is a group of one or more attributes that uniquely identifies a row.
• In a relation, the columns are sometimes called "attributes."

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