如何从这个结果集中求和？

Question

MySQL查询返回结果是这样的

collector amount    name
1     0.00      gihan
1     2000.00   gihan
1     2500.00   gihan
1     11502.00  gihan
2     1140.00   lasita

我想得到像这样的结果数组

collector  amount  count  name
1         16002.00   4    gihan
2          1140.00   1    lasita

任何想法如何循环结果集以获取匹配收集器的总和，同时获取计数并将结果放入新数组中？

Answer 1

当您可以让MySQL为您完成工作时，为什么要用PHP解决此问题？

SELECT collector, sum(amount) as amount, count(*) as `count`, name 
FROM yourTable
GROUP BY collector, name

Answer 2

SELECT collector,sum(amount) as amount,COUNT(*) as count,name
FROM Table
GROUP BY  collector,name;

Answer 3

使用SUM和COUNT可获得直接结果。 无需循环。

SELECT Collector,SUM(Amount) as Amount,COUNT(Amount) as Count,Name
FROM YourTable
GROUP BY Collector,Name