Syntax:  SET LANGUAGE ESCAPES character_string defined_language

  Describes the syntax of certain language elements, such as strings,
  that require special handling for proper text formatting.

  The value must be a quoted string containing the escape characters
  for quoted items.  Some languages use escape characters to insert
  quote characters into strings.  For example, C uses the backslash (\)
  as an escape character.  If you do not supply an escape, then LSE
  assumes that the language inserts quote characters into strings by
  doubling them.