Please help me urgently (Problem in using delete statement)

Question

Hello,
I want to run delete query where table name should come from a variable .I have written the following procedure but its not working .Could you please help me
DECLARE
processtemplatename VARCHAR2(64);
CURSOR T1Cursor IS
select Process_template_name from ProcessTemplate
where PROCESS_template_ID in
( select PROCESS_template_ID from PROCESSINSTANCE
where process_instance_id in
(select process_instance_id from processinstance where STATUS = 'PI_COMPLETED' OR STATUS = 'PI_REMOVED' ));
BEGIN
OPEN T1Cursor;
LOOP
FETCH T1Cursor INTO processtemplatename;
EXIT WHEN T1Cursor%NOTFOUND;
DELETE FROM processtemplatename WHERE process_instance_id in
( select process_instance_id from PROCESSINSTANCE where STATUS = 'PI_COMPLETED' OR STATUS = 'PI_REMOVED' );
END LOOP;
CLOSE T1Cursor;
END;
I am getting the error
ERROR at line 19:
ORA-06550: line 19, column 27:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 19, column 15:
PL/SQL: SQL Statement ignored
even when i used
DECLARE
processtemplatename VARCHAR2(64);
BEGIN
processtemplatename := 'example1';
DELETE FROM processtemplatename WHERE process_instance_id in
( select process_instance_id from PROCESSINSTANCE where STATUS = 'PI_COMPLETED' OR STATUS = 'PI_REMOVED' );
END;
I am still getting the same error message
Thanks,
Salam.

Answer 1

And BTW you do not need that clumsy CURSOR c.. OPEN c.. FETCH c INTO... CLOSE c etc. It is "reserved" for more complex cases when you cannot use:
<pre>
FOR P IN
     select Process_template_name
          from ProcessTemplate
          where PROCESS_template_ID in
               (select PROCESS_template_ID
                    from PROCESSINSTANCE
                    where process_instance_id in
                         (select process_instance_id
                              from processinstance
                              where STATUS = 'PI_COMPLETED'
                                   OR STATUS = 'PI_REMOVED'
LOOP
     EXECUTE IMMEDIATE
          'DELETE FROM ' || P.Process_template_name ||
               ' WHERE process_instance_id in
                    (select process_instance_id
                         from PROCESSINSTANCE
                         where STATUS = ''PI_COMPLETED'' OR STATUS = ''PI_REMOVED''
END LOOP;
</pre>