Identifiers are user-defined names that are used to identify various elements of an SPL program including variables, cursors, labels, programs, and parameters. The syntax rules for valid identifiers are the same as that for identifiers in the SQL language.
An identifier must not be the same as an SPL keyword or a keyword of the SQL language. The following content shows examples of valid identifiers:
x last___name a_$_Sign Many$$$$$$$$signs_____ THIS_IS_AN_EXTREMELY_LONG_NAME A1