这应该让你上个月的计数(即,过去4周),包括周其中计数为每个站点id为0。如果您有一个站点表来从中获取站点ID,则意味着交叉连接到子查询可以用一个简单的交叉连接替换为一个表。
这会生成一系列从0到5的数字,并从当前日期中减去该周数,格式为给出结果周的周日和周六,并检查结束周是当前日期之间的一周并且当前日期减去1个月(以这种方式完成,而不是仅仅减去4周以应付可变长度的月份)。
SELECT Weeks.aWeek_start, Weeks.aWeek_end, all_site_id.site_id, COUNT(tracker_click.id)
FROM
(
SELECT STR_TO_DATE(DATE_FORMAT(DATE_SUB(NOW(), INTERVAL units.i WEEK), '%Y%U Sunday 00:00:00'), '%X%V %W %H:%i:%s') AS aWeek_start,
STR_TO_DATE(DATE_FORMAT(DATE_SUB(NOW(), INTERVAL units.i WEEK), '%Y%U Saturday 23:59:59'), '%X%V %W %H:%i:%s') AS aWeek_end
FROM (SELECT 0 i UNION SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5)units
WHERE DATE_FORMAT(DATE_SUB(NOW(), INTERVAL units.i WEEK), '%Y%U') BETWEEN DATE_FORMAT(DATE_SUB(NOW(), INTERVAL 1 MONTH), '%Y%U') AND DATE_FORMAT(NOW(), '%Y%U')
) Weeks
CROSS JOIN
(
SELECT DISTINCT site_id
FROM tracker_click
) AS all_site_id
LEFT OUTER JOIN tracker_click
ON tracker_click.CREATED_AT BETWEEN Weeks.aWeek_start AND Weeks.aWeek_end
AND tracker_click.site_id = all_site_id.site_id
GROUP BY Weeks.aWeek_start, Weeks.aWeek_end, all_site_id.site_id
类似的查询可以完成全年
SELECT Months.aMonth_start, Months.aMonth_end, all_site_id.site_id, COUNT(tracker_click.id)
FROM
(
SELECT DATE_FORMAT(DATE_SUB(NOW(), INTERVAL units.i MONTH), '%Y/%m/01 00:00:00') AS aMonth_start,
DATE_FORMAT(LAST_DAY(DATE_SUB(NOW(), INTERVAL units.i MONTH)), '%Y/%m/%d 23:59:59') AS aMonth_end
FROM (SELECT 0 i UNION SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 UNION SELECT 7 UNION SELECT 8 UNION SELECT 9 UNION SELECT 10 UNION SELECT 11)units
) Months
CROSS JOIN
(
SELECT DISTINCT site_id
FROM tracker_click
) AS all_site_id
LEFT OUTER JOIN tracker_click
ON tracker_click.CREATED_AT BETWEEN Months.aMonth_start AND Months.aMonth_end
AND tracker_click.site_id = all_site_id.site_id
GROUP BY Months.aMonth_start, Months.aMonth_end, all_site_id.site_id
要做到这一点的几个月,假设你要个月上市,其中计数为零,为你生成所需的时间周期的列表,然后左边加入你的数据。 – Kickstart