Question

我的查询有问题。我有两个表，一个有点击，另一个有转化，如下所示

表：转化

 id | ref id      | registered | tempo     | prod_cod
    ----------------------------
    1  |      1      | 04/05/2018 | 15385950 | oggn-1
    2  |      1      | 05/05/2018 | 15385950 | oggn-1
    3  |      1      | 06/05/2018 | 15385950 | oggn-1

表：点击次数

 id    | ref id      | registered | tempo    | prod_cod | ip        | user_agent 
    ----------------------------
    1  |      1      | 05/05/2018 | 15385950 | oggn-1   | 192.168.1 | Mozilla....
    2  |      1      | 06/05/2018 | 15385950 | oggn-1   | 192.168.1 | Mozilla....
    3  |      1      | 07/05/2018 | 15385950 | oggn-1   | 192.168.1 | Mozilla....

我希望过去七天的ref id选择的结果是：

表：结果

 registered    | clicks      | conversion
    ----------------------------
    04/05/2018 |      0      |  1
    05/05/2018 |      1      |  1
    06/05/2018 |      1      |  1
    07/05/2018 |      1      |  0

这是我的查询，但效果不佳，因为如果两个数据库中都没有，则注册的值不会给出所有结果。

SELECT tbl_affiliate_traffic.registered, 
       Count(DISTINCT tbl_affiliate_traffic.id)    AS tarffic, 
       Count(DISTINCT tbl_affiliate_conversion.id) AS conversion 
FROM   tbl_affiliate_traffic CROSS 
       JOIN tbl_affiliate_conversion 
         ON tbl_affiliate_conversion.tempo >= '1524891602' 
            AND tbl_affiliate_conversion.registered = 
                tbl_affiliate_traffic.registered 
            AND tbl_affiliate_conversion.ref_id = '1' 
WHERE  tbl_affiliate_traffic.tempo >= '1524891602' 
       AND tbl_affiliate_traffic.ref_id = '1' 
GROUP  BY registered

Answer 1

如果可能出现问题，您无法在单个查询中减慢此问题，在较高数据量中需要花费太多时间。对这种场景和数组重新转换使用两个查询。

查询1：

SELECT COUNT(*) AS _count,registered FROM `Conversion` GROUP BY registered

执行此查询后，您需要像这样填充数组

$ Conversion = ['04 / 05/2018'=＆gt; 1，'05 / 05/2018'=＆gt; 1]

查询2：

SELECT COUNT(*) AS _count,registered FROM `Clicks` GROUP BY registered

并像这样填充数组“点击”

$ Clicks = ['04 / 05/2018'=＆gt; 0，'05 / 05/2018'=＆gt; 1]

之后，你可以合并这个两个数组

foreach($Conversion as $key=>$val){$result[$key]['Conversion'] =  $val}
foreach($Clicks as $key=>$val){$result[$key]['Clicks'] =  $val}

最后，你可以得到结果。

MYSQL查询无法正常工作

1 个答案: