>>-RTRIM--(--expression--)-------------------------------------><
The schema is SYSFUN.
Returns the characters of the argument with trailing blanks removed.
The argument can be of any built-in character string data types. For a VARCHAR the maximum length is 4 000 bytes and for a CLOB the maximum length is 1 048 576 bytes.
The result of the function is:
The result can be null; if the argument is null, the result is the null value.