CREATE TABLE Engineer_Visits (first_name VARCHAR(255), last_name VARCHAR(255), engineer_id VARCHAR(255)); CREATE TABLE Maintenance_Engineers (first_name VARCHAR(255), last_name VARCHAR(255), engineer_id VARCHAR(255))
Which engineers have never visited to maintain the assets? List the engineer first name and last name.
    
SQL: SELECT first_name, last_name FROM Maintenance_Engineers WHERE NOT engineer_id IN (SELECT engineer_id FROM Engineer_Visits)