Oracle Replace function

Question

I need to replace the Table1\'s filed values from Table2\'s values while select query.

Eg:

Table1:

Org                  Permission
--------------         


        

Answer 1

one of the awesome solution provided here to this sort of replace.

It just created one multiple_replace function:

CREATE TYPE t_text IS TABLE OF VARCHAR2(256);

CREATE FUNCTION multiple_replace(
  in_text IN VARCHAR2, in_old IN t_text, in_new IN t_text
)
  RETURN VARCHAR2
AS
  v_result VARCHAR2(32767);
BEGIN
  IF( in_old.COUNT <> in_new.COUNT ) THEN
    RETURN in_text;
  END IF;
  v_result := in_text;
  FOR i IN 1 .. in_old.COUNT LOOP
    v_result := REPLACE( v_result, in_old(i), in_new(i) );
  END LOOP;
  RETURN v_result;
END;

and then you could use this query to replace:

UPDATE Table1
SET permission_id = multiple_replace(Permission, (select distinct Permission from table2), 
        (select distinct Permission_name from table2));