This website uses cookies
We use cookies to continuously improve your experience on our site. More info.
🚀 Join our exclusive newsletter for Recruiters and Sourcers
Launching on Oct 20th, 2023. Become tech-savvy – sign up today!
Primary Key
A column or a set of columns that uniquely identifies each row in the table. A primary key must contain unique values. If the primary key consists of multiple columns, the combination of values in these columns must be unique.
| Open-source | Not defined |
Interesting facts
In the nodular writing of the Incas - kippu in the I-II millennium AD. were used including analogues of primary keys.