docs: public boolean doSeek(String strSeekSign) throws DBException
      {
          try   {
              BaseBuffer buffer = m_pTable.seek(strSeekSign, this);
              this.doSetHandle(buffer, DBConstants.DATA_SOURCE_HANDLE);
              return (buffer != null);
          } catch (DBException ex)    {
              throw DatabaseException.toDatabaseException(ex);
          }
      }