/**
* Gets the SQL DELETE statement.
*
* @return string
*/
private function _getDeleteStatement()
{
$tableName = Db::quoteId($this->_tableName);
$pkName = Db::quoteId($this->_primaryKey->getName());
$pkValue = $this->_db->quote($this->_primaryKey->getValue());
return "delete from {$tableName} where {$pkName} = {$pkValue}";
}