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When a constraint is created within a CREATE TABLE command, it is typically defined alongside the column definition, directly specifying the rules that apply to that column. For example, a NOT NULL constraint can be added directly after the column type to ensure that the column cannot contain null values. This inline definition makes it clear and concise, integrating the constraint into the overall table structure from the outset. However, more complex constraints, such as foreign keys, are often defined separately at the end of the column definitions.

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AnswerBot

8mo ago

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