mysql查询一周内每天的记录数。

Posted 2023-05-05

自己写的查询语句，目的就是统计这一周每天的记录数有多少条。感觉这样写的方法好像有点笨吧。有什么好的办法没。 $count1= mysql_num_rows(mysql_query("SELECT * FROM members WHERE TO_DAYS( NOW( ) ) - TO_DAYS( regtime)=6"));$count2= mysql_num_rows(mysql_query("SELECT * FROM members WHERE TO_DAYS( NOW( ) ) - TO_DAYS( regtime)=5"));$count3= mysql_num_rows(mysql_query("SELECT * FROM members WHERE TO_DAYS( NOW( ) ) - TO_DAYS( regtime)=4"));$count4= mysql_num_rows(mysql_query("SELECT * FROM members WHERE TO_DAYS( NOW( ) ) - TO_DAYS( regtime)=3"));$count5= mysql_num_rows(mysql_query("SELECT * FROM members WHERE TO_DAYS( NOW( ) ) - TO_DAYS( regtime)=2"));$count6= mysql_num_rows(mysql_query("SELECT * FROM members WHERE TO_DAYS( NOW( ) ) - TO_DAYS( regtime)=1"));$count7= mysql_num_rows(mysql_query("SELECT * FROM members WHERE TO_DAYS( NOW( ) ) - TO_DAYS( regtime)=0"));

假设members 表里有个字段是日期（CDATA），和一个ID字段，要统计每天的条数，可以用下面的语句：
SELECT i.CDATA,count(*) from members i
where cdata>=date_sub(now(),interval dayofweek(now()) day) and cdata <= date_add(now(),interval 7-dayofweek(now()) day) group by i.CDATA
以上语句统计的是从这周的第一天（星期天）到这周的最后一天（星期六）每天的记录条数。
程序里取出来循环得到每天的条数（查询出来的结果已经按日期分好，只要读取就行） 参考技术A $re = mysql_query("SELECT count(*) as n, (TO_DAYS( NOW( ) ) - TO_DAYS( regtime)) as `d` FROM members group by TO_DAYS( regtime) having d <= 6");

while($rc = mysql_fetch_assoc($re))
echo $rc['d']; //这个 0 代表今天 1 代表 1天前 2代表2天前 。。。
echo '<br />';
echo $rc['n']; //这个是数量
参考技术B 可以循环SELECT * FROM members WHERE TO_DAYS( NOW( ) ) - TO_DAYS( regtime)=XXX啊。。 参考技术C come here to see

从mysql获取数据并在几周内对它们进行分组，并显示日期

我每周打印数据。我需要在查询中添加一个东西。我想要一周的开始和结束日期以及数据。

目前数据是这样的

        [0] => Array
            (
                [WEEK] => 7

                [total_sub_total] => 110.30
                [total_tax] => 9.92
                [total_restaurant_delivery_fee] => 0
            )


        [0] => Array
            (
                [WEEK] => 8

                [total_sub_total] => 6540.00
                [total_tax] => 1046.40
                [total_restaurant_delivery_fee] => 0
            )

我想要那个星期的日期。例如，它应该是

[0] => Array
                (
                    [WEEK] => 8,
                    [starting_week_date] => 2018-02-21 13:18:10,
                    [ending_week_date] => 2018-02-26 13:18:10,


                    [total_sub_total] => 6540.00
                    [total_tax] => 1046.40
                    [total_restaurant_delivery_fee] => 0
                )

这是代码

public function getWeeklyEarnings($restaurant_id)
    {


        return $this->find('all', array(


            //'contain' => array('OrderMenuItem', 'Restaurant', 'OrderMenuItem.OrderMenuExtraItem', 'PaymentMethod', 'Address','UserInfo','RiderOrder.Rider'),

            'conditions' => array(



                'Order.restaurant_id' => $restaurant_id,
                'Order.status' => 2,
                'Order.created >    DATE_SUB(NOW(), INTERVAL 4 WEEK)'



            ),
            'fields' => array(


                'WEEK(Order.created) AS WEEK',

                'sum(Order.sub_total)   AS total_sub_total',
                'sum(Order.tax)   AS total_tax',
                'sum(Order.restaurant_delivery_fee)   AS total_restaurant_delivery_fee',

            ),
            'group' => array('WEEK(Order.created)'),

            'recursive' => 0

        ));
    }