ocr: Family Description Character Functions that operate on and return character strings. Functions An example is the SUBSTR function, which returns a portion or sub-string of the original string. Conversion Functions that convert data from one data type to Functions another. For example, the TO DATE function converts a string or number to a date. Date Functions Functions that operate on and return dates. An example is the ADD MONTHS function, which returns a date N months (in the past or future) from the original date. Numeric Functions Functions that operate on and return numbers. PL/SQL offers a ...
