, "30");
    cols.put("lang", "ja,en,c");
    if(!tdb.put(pkey, cols)){
      int ecode = tdb.ecode();
      System.err.println("put error: " + tdb.errmsg(ecode));
    }

    // store another record
    cols = new HashMap();
    cols.put("name", "falcon");
    cols.put("age", "31");
    cols.put("lang", "ja");
    cols.put("skill", "cook,blog");
    if(!tdb.put("x12345", cols)){
      int ecode = tdb.ecode();
      System.err.println("put error: " + tdb.errmsg(ecode));
    }

    // search for records
    T