what is primary key?
Answers
Answered by
1
Explanation:
mark m brainlist pls pls
Attachments:

Answered by
0
Answer:
A primary key, also called a primary keyword, is a key in a relational database that is unique for each record. It is a unique identifier, such as a driver license number, telephone number (including area code), or vehicle identification number (VIN). A relational database must always have one and only one primary key.
Similar questions