Home > Term: Primary key
Primary key
In relational databases, an attribute in an entity that uniquely identifies rows of that entity. For example, the Employee entity can contain an empID attribute that uniquely identifies each employee.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Software; Computer
- Category: Operating systems
- Company: Apple
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