Php mysql子查询计数where和group by
我有四张像这样的桌子 cc_代理 抄送电话 呼叫方要求 抄送通知 我执行的sql查询是Php mysql子查询计数where和group by,php,mysql,Php,Mysql,我有四张像这样的桌子 cc_代理 抄送电话 呼叫方要求 抄送通知 我执行的sql查询是 SELECT cca.id, cca.username, (SELECT COUNT(cccr.id) FROM cc_caller_requirements AS cccr WHERE cccr.cc_agent_id = cca.id GROUP BY cccr.cc_caller_id) AS num_of_callers, (SELECT COUNT(ccns
SELECT cca.id, cca.username,
(SELECT COUNT(cccr.id)
FROM cc_caller_requirements AS cccr
WHERE cccr.cc_agent_id = cca.id
GROUP BY cccr.cc_caller_id) AS num_of_callers,
(SELECT COUNT(ccns.id)
FROM cc_notifications AS ccns
WHERE ccns.cc_agent_id = cca.id
AND ccns.cc_notification_type_id = 'sms') AS sms,
(SELECT COUNT(ccnm.id)
FROM cc_notifications AS ccnm
WHERE ccnm.cc_agent_id = cca.id
AND ccnm.cc_notification_type_id = 'mail') AS mail,
(SELECT COUNT(ccna.id)
FROM cc_notifications AS ccna
WHERE ccna.cc_agent_id = cca.id
AND ccna.cc_notification_type_id = 'courier') AS courier
FROM cc_agents AS cca
GROUP BY cca.id
我正在寻找这样的输出:
+------------+---------------+-----------+------------+---------------+
| agent name | no of callers | total sms | total mail | total courier |
+------------+---------------+-----------+------------+---------------+
| sankar | 5 | 7 | 6 | 3 |
| jenifer | 0 | 0 | 0 | 0 |
| andrew | 0 | 0 | 0 | 0 |
| nirmal | 1 | 1 | 1 | 1 |
| raja | 1 | 2 | 2 | 2 |
+------------+---------------+-----------+------------+---------------+
代理名称,总短信,总邮件和总快递数据工作良好
但是,当我不需要任何调用方时,会出现“子查询返回超过1行”的错误
请帮我解决它将您的查询更改为:
SELECT cca.id, cca.username,
(SELECT COUNT(DISTINCT cccr.cc_caller_id)
FROM cc_caller_requirements AS cccr
WHERE cccr.cc_agent_id = cca.id
) AS num_of_callers,
(SELECT COUNT(ccns.id)
FROM cc_notifications AS ccns
WHERE ccns.cc_agent_id = cca.id
AND ccns.cc_notification_type_id = 'sms') AS sms,
(SELECT COUNT(ccnm.id)
FROM cc_notifications AS ccnm
WHERE ccnm.cc_agent_id = cca.id
AND ccnm.cc_notification_type_id = 'mail') AS mail,
(SELECT COUNT(ccna.id)
FROM cc_notifications AS ccna
WHERE ccna.cc_agent_id = cca.id
AND ccna.cc_notification_type_id = 'courier') AS courier
FROM cc_agents AS cca
GROUP BY cca.id
非常感谢你。。。您的查询非常有效。。。谢谢lot@user3101664不,此查询是错误的,表甚至没有联接。运行时没有错误的查询不一定是有效的查询。@begueradj,您能按照预期的输出发布您的查询吗。。。thanks@Begueradj您认为它有什么问题,为什么要使用联接?
+----+-------------+--------------+-------------------+----------------------+
| id | cc_agent_id | cc_caller_id | cc_requirement_id | cc_notification_type |
+----+-------------+--------------+-------------------+----------------------+
| 1 | 1 | 5 | 1 | sms |
| 2 | 1 | 5 | 1 | mail |
| 3 | 1 | 5 | 1 | courier |
| 4 | 1 | 5 | 2 | sms |
| 5 | 1 | 5 | 2 | mail |
| 6 | 1 | 2 | 3 | sms |
| 7 | 1 | 2 | 4 | sms |
| 8 | 1 | 2 | 4 | mail |
| 9 | 1 | 2 | 4 | courier |
| 10 | 1 | 7 | 5 | mail |
| 11 | 1 | 7 | 5 | courier |
| 12 | 4 | 2 | 6 | sms |
| 13 | 4 | 2 | 6 | mail |
| 14 | 4 | 2 | 6 | courier |
| 30 | 5 | 2 | 12 | sms |
| 31 | 5 | 2 | 12 | mail |
| 32 | 5 | 2 | 12 | courier |
| 33 | 5 | 2 | 13 | sms |
| 34 | 5 | 2 | 13 | mail |
| 35 | 5 | 2 | 13 | courier |
| 36 | 1 | 2 | 14 | sms |
| 37 | 1 | 8 | 15 | sms |
| 38 | 1 | 8 | 15 | mail |
| 39 | 1 | 9 | 16 | sms |
| 40 | 1 | 9 | 16 | mail |
+----+-------------+--------------+-------------------+----------------------+
SELECT cca.id, cca.username,
(SELECT COUNT(cccr.id)
FROM cc_caller_requirements AS cccr
WHERE cccr.cc_agent_id = cca.id
GROUP BY cccr.cc_caller_id) AS num_of_callers,
(SELECT COUNT(ccns.id)
FROM cc_notifications AS ccns
WHERE ccns.cc_agent_id = cca.id
AND ccns.cc_notification_type_id = 'sms') AS sms,
(SELECT COUNT(ccnm.id)
FROM cc_notifications AS ccnm
WHERE ccnm.cc_agent_id = cca.id
AND ccnm.cc_notification_type_id = 'mail') AS mail,
(SELECT COUNT(ccna.id)
FROM cc_notifications AS ccna
WHERE ccna.cc_agent_id = cca.id
AND ccna.cc_notification_type_id = 'courier') AS courier
FROM cc_agents AS cca
GROUP BY cca.id
+------------+---------------+-----------+------------+---------------+
| agent name | no of callers | total sms | total mail | total courier |
+------------+---------------+-----------+------------+---------------+
| sankar | 5 | 7 | 6 | 3 |
| jenifer | 0 | 0 | 0 | 0 |
| andrew | 0 | 0 | 0 | 0 |
| nirmal | 1 | 1 | 1 | 1 |
| raja | 1 | 2 | 2 | 2 |
+------------+---------------+-----------+------------+---------------+
SELECT cca.id, cca.username,
(SELECT COUNT(DISTINCT cccr.cc_caller_id)
FROM cc_caller_requirements AS cccr
WHERE cccr.cc_agent_id = cca.id
) AS num_of_callers,
(SELECT COUNT(ccns.id)
FROM cc_notifications AS ccns
WHERE ccns.cc_agent_id = cca.id
AND ccns.cc_notification_type_id = 'sms') AS sms,
(SELECT COUNT(ccnm.id)
FROM cc_notifications AS ccnm
WHERE ccnm.cc_agent_id = cca.id
AND ccnm.cc_notification_type_id = 'mail') AS mail,
(SELECT COUNT(ccna.id)
FROM cc_notifications AS ccna
WHERE ccna.cc_agent_id = cca.id
AND ccna.cc_notification_type_id = 'courier') AS courier
FROM cc_agents AS cca
GROUP BY cca.id