What is a primary key?
Answer (1)
17th Feb, 2022
A primary key is an identifier that uniquely identifies a row in the table containing data. Keys can also be referred to as primary keys and unique keys. A table’s primary key uniquely identifies each row in that table. Primary keys must not be nullable and can only contain blanks, numbers, or a combination of both.
Comments (0)
Related Questions
What is the primary key?
27 Views
Trending Articles/News
![CAT Registration 2025 Release Date [Direct IIM Link] - How to Fill Application Form, Fees](https://cache.careers360.mobi/media/presets/50X50/article_images/2025/2/28/CAT-2025-Registration.jpg)
