Question

我有以下查询，用于计算过去5个月内发生的订单总销售额，

>     SELECT SUM(o.total), DATE(o.order_date) dateonly FROM `order` as o where (o.order_date BETWEEN  last_day(NOW() - INTERVAL 5 MONTH) AND 
> date_format(NOW(), '%Y-%m-%d')  AND (o.order_status = "P" OR
> o.order_status = "T" OR o.order_status = "S" OR o.order_status = "D"
> )) GROUP BY month(o.order_date)

我正在尝试在zend中实现上述查询。但我坚持中间。我的代码来自models / DbTable，

class Default_Model_DbTable_Order extends Zend_Db_Table_Abstract
{
    protected $_name = 'order';
    protected $_primary = 'order_id';
    public function month_based_orderlist()
    {
        $oDb = Zend_Registry::get("db");        
        $whereSQL  = 'o.order_id > 0';
        $whereSQL .= ' AND o.status = 1';
        $whereSQL .= ' AND o.order_date BETWEEN  last_day(NOW() - INTERVAL 5 MONTH) AND  date_format(NOW(),'.%Y-%m-%d.')';
        $whereSQL .= ' AND o.order_status = "P"';
        $whereSQL .= ' OR o.order_status = "T"';
        $whereSQL .= ' OR o.order_status = "S"';
        $whereSQL .= ' OR o.order_status = "D"';
        $select = $oDb->select()
            ->from(
                array('o' => $this->_name), 
                array(
                    'lifetimesale' => new Zend_Db_Expr('SUM(o.total)'),
                    'dateonly' => DATE('o.order_date')
                )
            )->where($whereSQL);

        //echo $select; exit;
        $result = $this->getAdapter()->fetchAll($select);
        // print_obj($result);
        return $result;            

    }
}
?>

我正在尝试像上面那样实现sql查询，我在这方面做错了什么。请帮助我

Answer 1

错误在这里：

.%Y-%m-%d.

修改

菲尔指出我的解决方案是错误的。我重新检查，他是对的。解决方案应该只是删除刻度线，并加上双引号：

// assume $date is set $whereSQL .= ' AND o.order_date BETWEEN last_day(NOW() -' . ' INTERVAL 5 MONTH) AND date_format(NOW(), "%Y-%m-%d")';

或者，您可以使用反斜杠转义单引号并删除sting concat运算符：

... date_format(NOW(), \'%Y-%m-%d\')';

另外，我看到你正在扩展Zend_Db_Table_Abstract，因此，你不需要这一行：

$oDb = Zend_Registry::get('db');

请忽略它，然后使用$this。它看起来像这样（添加了GROUP BY子句简化）：

$select = $this->select() ->from($fromTable, $columns) ->where($whereSQL) ->group('month(o.order_date)'); $result = $this->fetchAll($select);

要添加GROUP BY子句，只需执行此操作（或使用方法链接查看上面的示例）：

$select->group('month(o.order_date)');

感谢Phil寻求帮助！

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