php - sql 查询对一个查询中多个定义的列进行计数

Question

我一直在浏览这个网站，试图a)更好地理解我的问题，b)找到一些帮助来解决它，但似乎我所看到的一切都与我的问题略有不同，所以我在这里寻求帮助请给一些建议:)

我有以下查询

SELECT *, 
(date_end < 1392569012) AS expired, 
(date_start > 1392569012) AS pending, 
(date_end > 1392569012 && date_start <= 1392569012) AS active 
FROM tbl_events AS event 
LEFT JOIN tbl_event_events AS ee ON event.event_id = ee.event_id
WHERE event.event_type = 5 && event.user_id = '".$user->getUserID()."'
ORDER BY expired,pending,active

它决定列表的状态。

现在我想做的是计算活跃、待处理和过期列表的数量

这是我更新的查询，但它只返回 1 行，但总和值正确？

SELECT *, 
SUM(date_end < 1392569012) AS expiredCount,
SUM(date_start > 1392569012) AS pendingCount, 
SUM(date_end > 1392569012 && date_start <= 1392569012) AS activeCount,              
(date_end < 1392569012) AS expired, 
(date_start > 1392569012) AS pending, 
(date_end > 1392569012 && date_start <= 1392569012) AS active 
FROM tbl_events AS event 
LEFT JOIN tbl_job_events AS jobvent ON event.event_id = jobvent.event_id
LEFT JOIN tbl_job_department AS jdept ON event.event_id = jdept.event_id
LEFT JOIN tbl_departments as dept ON jdept.department_id = dept.department_id 
WHERE event.event_type = 2 && event.user_id = '".$user->getUserID()."'
ORDER BY expired,pending,active 

有人可以帮我让它工作吗!

感谢您的帮助

卢克

Answer 1

由于该过滤器的 active 值为 1，其他过滤器的 active 值为 0，因此将总和添加到事件过滤器以获取满足该过滤器的行数。

SELECT *, ( SELECT  SUM(date_end > 1392569012 && date_start <= 1392569012)
FROM tbl_events AS event 
LEFT JOIN tbl_event_events AS ee ON event.event_id = ee.event_id
WHERE event.event_type = 5 && event.user_id = '".$user->getUserID()."'
ORDER BY expired,pending,active),
(date_end < 1392569012) AS expired, 
(date_start > 1392569012) AS pending, 
(date_end > 1392569012 && date_start <= 1392569012) AS active 
FROM tbl_events AS event 
LEFT JOIN tbl_event_events AS ee ON event.event_id = ee.event_id
WHERE event.event_type = 5 && event.user_id = '".$user->getUserID()."'
ORDER BY expired,pending,active