Translations:MySQL/Startup Guide/139/en

field_name will contain the name of the field. We have 3 required names in this case: name, email, and job. Also, a  field is defined for easy relation with other tables and will auto-increment with each insert. The  is recommended, but not required as MySQL will keep one internally. Indexes, of which the  belongs to, allow for faster data access as the tables grow.