Primary Key
A superkey which has a set of attributes whose values ensure the unique identification of the rows in a table. It is the principal means of identifying tuples in a relation. Its value is never, or at most rarely, changed.
- قسم من أقسام الكلام: proper noun
- المجال / النطاق: البرامج
- الفئة: تطبيقات قواعد البيانات
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