original_string: protected function _renderForupdate($sql)
      {
          if ($this->_parts[self::FOR_UPDATE]) {
              $sql .= ' ' . self::SQL_FOR_UPDATE;
          }
  
          return $sql;
      }
code: protected function _renderForupdate($sql)
      {
          if ($this->_parts[self::FOR_UPDATE]) {
              $sql .= ' ' . self::SQL_FOR_UPDATE;
          }
  
          return $sql;
      }
code_tokens: protected function _renderForupdate ( $ sql ) { if ( $ this -> _parts [ self :: FOR_UPDATE ] ) { $ sql .= ' ' . self :: SQL_FOR_UPDATE ; } return $ sql ; }
docstring: Render FOR UPDATE clause
  
  @param string   $sql SQL query
  @return string
docstring_tokens: Render FOR UPDATE clause