TRANSLATE(x, from_string, to_string) convert the occurrences of characters in from_string found in x to corresponding characters in to_string.
SQL> SELECT TRANSLATE('THIS IS A DEMO', 2 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 3 'EFGHIJKLMNOPQRSTUVWXYZABCD') FROM dual; TRANSLATE('THI -------------- XLMW MW E HIQS SQL>