Returns true or false, depending on whether all of the characters in the current character set can be represented in one byte.
FUNCTION Ora_Nls.Single_Byte
RETURN BOOLEAN;
/*
** Determine if the character set is single or multi-byte
*/
bytes := Ora_Nls.Single_Byte;
IF bytes = FALSE
lang_name (langinfo.txt);
Text_IO.Put ('This is a multi-byte character set.');
END IF;