original_string: protected function _prepare($sql)
      {
          try {
              $this->_stmt = $this->_adapter->getConnection()->prepare($sql);
          } catch (PDOException $e) {
              // require_once 'Zend/Db/Statement/Exception.php';
              throw new Zend_Db_Statement_Exception($e->getMessage(), $e->getCode(), $e);
          }
      }
code: protected function _prepare($sql)
      {
          try {
              $this->_stmt = $this->_adapter->getConnection()->prepare($sql);
          } catch (PDOException $e) {
              // require_once 'Zend/Db/Statement/Exception.php';
              throw new Zend_Db_Statement_Exception($e->getMessage(), $e->getCode(), $e);
          }
      }
code_tokens: protected function _prepare ( $ sql ) { try { $ this -> _stmt = $ this -> _adapter -> getConnection ( ) -> prepare ( $ sql ) ; } catch ( PDOException $ e ) { // require_once 'Zend/Db/Statement/Exception.php'; throw new Zend_Db_Statement_Exception ( $ e -> getMessage ( ) , $ e -> getCode ( ) , $ e ) ; } }
docstring: Prepare a string SQL statement and create a statement object.
  
  @param string $sql
  @return void
  @throws Zend_Db_Statement_Exception
docstring_tokens: Prepare a string SQL statement and create a statement object .