Data Management
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data_concept:primary_key
Primary key
Definition
A primary key is one or more data element that uniquely identifies a data record.
Relation
| Primary key | is child of | data element |
| Primary key | identifies | data record |
| Primary key | can be used as link to another data record by a | foreign key |
data_concept/primary_key.txt · Last modified: 2024/03/08 13:33 (external edit)