Du kan bruge REPLACE funktion.
For eksempel,
SQL> WITH DATA(str) AS(
2 SELECT '1,0,1' FROM dual
3 )
4 SELECT str,
5 REPLACE(REPLACE(str, '0', 'Zero'), '1', 'One') new_str
6 FROM DATA;
STR NEW_STR
----- ------------------------------------------------------------
1,0,1 One,Zero,One
SQL>