Question
Which of the following is found in one or more columns of data and contains a unique identifier for the row?
answer
Relationship
Primary key
Attribute
Foreign key
answer
Relationship
Primary key
Attribute
Foreign key
Answers
GPT-4o mini
The correct answer is **Primary key**.
A primary key is a unique identifier for each row in a database table, ensuring that no two rows have the same value in that column or set of columns.
A primary key is a unique identifier for each row in a database table, ensuring that no two rows have the same value in that column or set of columns.