Home / Unit-4 Data and Anaylsis / Question
MCQ
A foreign key in a table is used to do what?
Unit-4 Data and Anaylsis
A Link records between two tables
B Store pictures only
C Delete the whole database
D Replace the primary key permanently
Explanation

A foreign key references a primary key in another table to create a relationship between tables.

Related MCQs

How does big data help in agriculture?
Unit-4 Data and Anaylsis View
A smartwatch tracks heart rate and sends the data to a phone app. This is an example of what?
Unit-4 Data and Anaylsis View
Student grades given as A, B, C, D, F are an example of which data type?
Unit-4 Data and Anaylsis View
What is the mode of the numbers 2, 3, 3, 4, 5?
Unit-4 Data and Anaylsis View
Big data analytics in healthcare can help doctors by doing what?
Unit-4 Data and Anaylsis View
Which method is used to collect data by asking questions to a group of people?
Unit-4 Data and Anaylsis View