这是我的代码，
select concat(month(b.delivery_date), "/", year(b.delivery_date)) as month_year, b.company, sum(b.subtotal) as revenue
from all_company a, all_order_summary b
where a.company_id = b.company_id and a.paid = 1 and year(b.delivery_date) = 2017
group by year(b.delivery_date), month(b.delivery_date)
打印出类似这样的内容：
MONTH_YEAR |公司收入
| 01/2017 | ABC123 | 500000
| 02/2017 | ABC123 | 100000
| 01/2017 | DEF456 | 300000
| 02/2017 | DEF456 | 800000
我希望它以这种方式打印，
[空间] 01/2017 | 02/2017
ABC123 | 500000 | 100000 |
DEF456 | 300000 | 800000 |
我该怎么做才能改变这个？ （我对SQL比较新）