Execute concatenated procedure

Question

Hello,
How can I execute a procedure from a package in another procedure in that package when I combined the name of this procedure from a table.
I have a table containing procedure names and parameters that go with it.
With a cursor in another procedure I want to combine this together and execute that combined procedure.
Here is some code to clarify
CURSOR c_sel IS
     SELECT ids,proc_nm,period_1,period_2,period_3,period_4
     FROM fep_adm_prcs
     WHERE select_bl ='Y';
CURSOR c_trunc(p_procids IN NUMBER) IS
     SELECT tab_name
     FROM FEP_ADM_TABS
     WHERE PROC_IDS = p_procids;
period1_t VARCHAR2(10);
period2_t VARCHAR2(10);
period3_t VARCHAR2(10);
period4_t VARCHAR2(10);
BEGIN
-- Start looping all procedures named in the collection
     FOR r_sel IN c_sel LOOP
     -- Fisrt truncate every table related to the selected procedure before start of load new data
          FOR r_trunc IN c_trunc(r_sel.ids) LOOP
          DBMS_OUTPUT.PUT_LINE('TRUNCATE TABLE '||r_trunc.tab_name);
          EXECUTE IMMEDIATE ('TRUNCATE TABLE '||r_trunc.tab_name);
          END LOOP;
     -- Second loop through the 4 periods and generate execution script when period is not null
          IF r_sel.period_1 IS NOT NULL THEN
               DBMS_OUTPUT.PUT_LINE('execute fep_compute_tables.'||r_sel.proc_nm||'('''||r_sel.period_1||''')');
               --EXECUTE IMMEDIATE('execute FEP_COMPUTE_TABLES.'||r_sel.proc_nm||'('''||r_sel.period_1||''')');
               FEP_COMPUTE_TABLES.r_sel.proc_nm(r_sel.period_1);
          END IF;
This last one is not working, but how can I get it to work?
Thanks a lot

Answer 1

this is the error I get
ORA-00900 invalid SQL statement
Cause: The statement is not recognized as a valid SQL statement. This error can occur if the Procedural Option is not installed and a SQL statement is issued that requires this option (for example, a CREATE PROCEDURE statement). You can determine if the Procedural Option is installed by starting SQL*Plus. If the PL/SQL banner is not displayed, then the option is not installed.
Action: Correct the syntax or install the Procedural Option.