Explain the different ways to grant privileges in MySQL and discuss the importance of granting appropriate privileges based on the principle of least privilege.

The GRANT statement is used to create users and assign privileges to them in MySQL $5\mathrm{.}7$ and earlier versions.

With MySQL $8\mathrm{.}0$ and later, users can be created using the GRANT statement, allowing simultaneous creation and privilege assignment.

The ALL privilege in the GRANT statement grants all privileges on all databases and tables to a user, including the ability to grant privileges to other users.

Granting privileges at the column level is a common practice to provide granular access control to specific data fields