A data analyst needs to increase the salary of all employees in the 'Accounts' department by 10%. The department name is stored in the DeptName column. Which SQL command correctly achieves this task?

Which category of SQL commands does the INSERT statement belong to?

Which command is used to remove all records from a table while keeping the table structure intact and cannot be rolled back in most default settings?

If you need to add a new column named Email to an existing table called Users, which statement would you use?