create table big_tableasselect rownum id, a.*  from all_objects a where 1=0/alter table big_table nologging;declare    l_cnt number;    l_rows number := &1;begin    insert /*+ append */    into big_table    select rownum, a.*      from all_objects a     where rownum <= &1;    l_cnt := sql%rowcount;    commit;    while (l_cnt < l_rows)    loop        insert /*+ APPEND */ into big_table        select rownum+l_cnt,                OWNER, OBJECT_NAME, SUBOBJECT_NAME, OBJECT_ID, DATA_OBJECT_ID,               OBJECT_TYPE, CREATED, LAST_DDL_TIME, TIMESTAMP, STATUS,               TEMPORARY, GENERATED, SECONDARY, NAMESPACE, EDITION_NAME          from big_table         where rownum <= l_rows-l_cnt;        l_cnt := l_cnt + sql%rowcount;        commit;    end loop;end;/