TRIM (string)

  Class:  Transformational function - Generic

  Returns the argument with trailing blanks removed.

  The "string" is a scalar of type character.  The result is of type
  character with the same kind type parameter as "string".  Its
  length is the length of "string" minus the number of trailing
  blanks in "string".

  The value of the result is the same as "string", except any
  trailing blanks are removed.  If "string" contains only blank
  characters, the result has zero length.

  Examples:

  TRIM ('  NAME    ') has the value '  NAME'.

  TRIM ('  C  D     ') has the value '  C  D'.