分组依据以计算唯一组合的出现次数及其交易总和。
Group By to get count of occurrences of a unique combination and sum of it's transactions.
如何获取唯一组合的出现次数及其交易总和？
我的数据是这样的：
我想要这个：
select Customer,Bank,count(*) Count,sum(Transaction) Transaction
from yourtable
group by Customer,Bank
如何获取唯一组合的出现次数及其交易总和？
我的数据是这样的：
我想要这个：
select Customer,Bank,count(*) Count,sum(Transaction) Transaction
from yourtable
group by Customer,Bank