Jquery 使用子查询选择其他记录
我尝试列出所有客户记录和第一次订单日期 表格客户Jquery 使用子查询选择其他记录,jquery,mysql,sql,Jquery,Mysql,Sql,我尝试列出所有客户记录和第一次订单日期 表格客户 customer_id | customer_name 1 + John 2 + Brad order_id | customer_id | date 1 + 1 + 2013-10-12 01:00:00 2 + 1 + 2013-11-18 09:00:00 3 + 2 + 201
customer_id | customer_name
1 + John
2 + Brad
order_id | customer_id | date
1 + 1 + 2013-10-12 01:00:00
2 + 1 + 2013-11-18 09:00:00
3 + 2 + 2013-11-21 02:00:00
表格订单
customer_id | customer_name
1 + John
2 + Brad
order_id | customer_id | date
1 + 1 + 2013-10-12 01:00:00
2 + 1 + 2013-11-18 09:00:00
3 + 2 + 2013-11-21 02:00:00
MySQL
$get_ch_raw = "select c.*, a.*, ch.* from `customers` c left join `admin` a on
a.admin_id=c.admin_id left join `call_history` ch on
ch.customer_id=c.customers_id
order by c.customers_id desc"
结果应该是这样的:
1 + John + 2013-10-12 01:00:00
2 + Brad + 2013-11-21 02:00:00
在这种情况下,我不确定如何使用子查询选择第一个订单。这应该可以做到:
SELECT c.customer_id, c.customer_name, MIN(o.date) date FROM customers c
LEFT JOIN orders o USING (customer_id)
GROUP BY c.customer_id
小提琴。我假设表
admin
实际上应该是orders
,对吗?嗯,不,管理员是美容顾问,我不想在这里列出所有的表