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Arik Chakma
274082fd77
* refactor: clean to roadmap content * refactor: move shared helpers into scripts/lib
462 B
462 B
Unique Constraint
A unique constraint ensures that all values in a column (or a group of columns) are different. It prevents duplicate entries, maintaining data integrity by enforcing uniqueness for the specified field(s). This is useful for fields like email addresses or usernames, where each record should have a distinct value.
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