How to evaluate and get results of formula stored in column?

[Marco Rover]

I've a column with a string like this
"=1*.003*2* 3" and I want to evalute this formula
to get the result (in the example is 0.018).
How I can get the rusult? Thanks in advance

[rski]

Remove = with repexp_replace and use dynamic query

FOR i in SELECT column FROM your_table LOOP
EXECUTE IMMEDIATE 'select '||i.column||' FROM DUAL ' INTO some_defined_variable;
....
END LOOP;

[Marco Rover]

This was what I really need:

SQL> CREATE OR REPLACE FUNCTION calc(pi_val VARCHAR2) RETURN NUMBER IS
2 v_return NUMBER;
3 BEGIN
4 EXECUTE IMMEDIATE 'select '||pi_val||' from dual' INTO v_return;
5 RETURN v_return;
6 END;
7 /

Function created
SQL> SELECT calc('2*6*10') FROM dual;

CALC('2*6*10')
--------------
120

I found the solution at this link:

http://stackoverflow.com/questions/1267025/how-to-calculate-value-of-string-in-oracle

Thanks anyway.