1. of or pertaining to the science or practice of medicine. 2. curative; medicinal; medical properties. 3. pertaining to or requiring treatment by other than surgical means. 4. pertaining to or indicating the state of one's health: a medical leave.
Numbers refer to positional arguments passed to the .format() method, starting at 0 for the first argument. You may also use any Python name to refer to one of the keyword arguments. If the associated argument is an iterable, you may append an expression of this form to retrieve one of its elements:
Format Models. A format model is a character literal that describes the format of datetime or numeric data stored in a character string. A format model does not change the internal representation of the value in the database. When you convert a character string into a date or number, a format model determines how Oracle Database interprets the string.