title: Error : ORA-14155: missing PARTITION, PARTITIONS, SUBPARTITION, or SUBPARTITIONS keyword
body: <p>I m trying to rename columns dynamically in Oracle.<br>
  I have a table whose column is named on month names, every month I need to refresh the data and change column names accordingly.</p>
  
  <pre><code>DECLARE
    v_cur_month_name VARCHAR2(100);
    i                INT := 0;
    vsql             VARCHAR2(250);
  BEGIN
    FOR my_tab IN (WITH month_counter AS
                      (SELECT column_name, rownum AS cnt
                      FROM all_tab_columns
                      WHERE lower(owner) = 'ppl'
                      AND lower(table_name) = 'test')
                     SELECT column_name AS MONTH, cnt FROM month_counter WHERE rownum &lt;= 12) LOOP
  
      v_cur_month_name := to_char(to_date(extract(MONTH FROM to_date(to_char(add_months(SYSDATE, i), 'YYYY-MM-DD'), 'YYYY-MM-DD')), 'MM'), 'MONTH');
  
      vsql := 'alter table ppl.test rename column' || my_tab.month || 'TO' || v_cur_month_name;
      EXECUTE IMMEDIATE vsql;
      i := i + 1;
    END LOOP;
  END;
  </code></pre>
  
  <p>For this: i am getting error as:</p>
  
  <blockquote>
    <p>ORA-14155: missing PARTITION, PARTITIONS, SUBPARTITION, or SUBPARTITIONS keyword</p>
    
    <p>ORA-06512: at line 20</p>
  </blockquote>