Suppose there is a list of employees in a company with their info: (name of database: employees)
The emails were added to the data to uniquely identify each of the employees:
name: John
fieldOfWork: engineering
salary: 30000
email: [email protected]
name: Smith
fieldOfWork: marketing
salary: 10000
hobbies: [email protected]
name: John
fieldOfWork: engineering
salary: 30000
email: [email protected]Make the email field unique so that no same email can be added to the database.