public void Select_tasks_steps(
     Xobc_task_step_hash task_step_hash,
     Xobc_step_map_tbl step_map_tbl,
     byte[] wiki_abrv,
     String wiki_date) {
   task_step_hash.Clear();
   Db_rdr rdr =
       conn.Stmt_sql(
               String_.Concat_lines_nl_skip_last(
                   "SELECT  DISTINCT sm.task_id, sm.step_id",
                   "FROM    " + tbl_name + " imps",
                   "        JOIN " + step_map_tbl.Tbl_name() + " sm ON sm.step_id = imps.step_id",
                   "WHERE   imps.wiki_abrv = ?",
                   "AND     imps.wiki_date = ?"))
           .Crt_bry_as_str(fld_wiki_abrv, wiki_abrv)
           .Crt_str(fld_wiki_date, wiki_date)
           .Exec_select__rls_auto();
   try {
     while (rdr.Move_next()) {
       task_step_hash.Add(rdr.Read_int("task_id"), rdr.Read_int("step_id"));
     }
   } finally {
     rdr.Rls();
   }
 }
 public int Get_pending_count() {
   Db_rdr rdr =
       make_conn.Stmt_sql("SELECT Count(*) AS Count_of FROM xomp_page mp WHERE mp.page_status = 0")
           .Exec_select__rls_auto();
   try {
     return rdr.Move_next() ? rdr.Read_int("Count_of") : 0;
   } finally {
     rdr.Rls();
   }
 }
 public Xobc_import_step_itm Select_one(int step_id) {
   Db_rdr rdr =
       conn.Stmt_select(tbl_name, flds, fld_step_id)
           .Crt_int(fld_step_id, step_id)
           .Exec_select__rls_auto();
   try {
     return (rdr.Move_next()) ? New_itm(rdr) : Xobc_import_step_itm.Null;
   } finally {
     rdr.Rls();
   }
 }
 private Xobc_import_step_itm New_itm(Db_rdr rdr) {
   return new Xobc_import_step_itm(
       rdr.Read_int(fld_step_id),
       rdr.Read_int(fld_host_id),
       rdr.Read_bry_by_str(fld_wiki_abrv),
       rdr.Read_str(fld_wiki_date),
       rdr.Read_str(fld_import_name),
       rdr.Read_int(fld_import_type),
       rdr.Read_byte(fld_import_zip),
       rdr.Read_long(fld_import_size_zip),
       rdr.Read_long(fld_import_size_raw),
       rdr.Read_str(fld_import_md5),
       rdr.Read_long(fld_prog_size_end),
       rdr.Read_int(fld_prog_count_end));
 }
 public Xobc_import_step_itm[] Select_by_task_id(int task_id) {
   List_adp list = List_adp_.New();
   Db_rdr rdr =
       conn.Stmt_sql(
               Db_sql_.Make_by_fmt(
                   String_.Ary(
                       "SELECT  s.*",
                       "FROM    import_step s",
                       "        JOIN step_map sm ON s.step_id = sm.step_id",
                       "WHERE   sm.task_id = {0}"),
                   task_id))
           .Exec_select__rls_auto();
   try {
     while (rdr.Move_next()) {
       list.Add(New_itm(rdr));
     }
   } finally {
     rdr.Rls();
   }
   return (Xobc_import_step_itm[]) list.To_ary_and_clear(Xobc_import_step_itm.class);
 }
  private int Load_from_db(List_adp list, int uid_prv) {
    // prepare for page_tbl
    String sql =
        String_.Format(
            String_.Concat_lines_nl_skip_last // ANSI.Y
                (
                "SELECT  mp.xomp_uid",
                ",       pp.page_id",
                ",       pp.page_namespace",
                ",       pp.page_title",
                ",       pp.page_text_db_id",
                "FROM    xomp_page mp",
                "        JOIN <page_db>page pp ON mp.page_id = pp.page_id",
                "WHERE   mp.xomp_uid > {0}",
                "AND     mp.page_status = 0",
                "LIMIT   {1}"),
            uid_prv,
            num_pages_per_load);
    this.attach_mgr.Conn_links_(
        new Db_attach_itm("page_db", wiki.Data__core_mgr().Db__core().Conn()));
    sql = attach_mgr.Resolve_sql(sql);

    // run page_tbl
    int rv = -1;
    Xomp_text_db_loader text_db_loader = new Xomp_text_db_loader(wiki);
    attach_mgr.Attach();
    Db_rdr rdr = make_conn.Stmt_sql(sql).Exec_select__rls_auto();
    try {
      while (rdr.Move_next()) {
        rv = rdr.Read_int("xomp_uid");
        int text_db_id = rdr.Read_int("page_text_db_id");
        Xomp_page_itm ppg = new Xomp_page_itm(rdr.Read_int("page_id"));
        ppg.Init_by_page(
            rdr.Read_int("page_namespace"), rdr.Read_bry_by_str("page_title"), text_db_id);
        list.Add(ppg);
        text_db_loader.Add(text_db_id, ppg);
      }
    } finally {
      rdr.Rls();
    }
    attach_mgr.Detach();

    text_db_loader.Load();
    return rv;
  }