使用SUM（）的MYSQL选择查询

Question

I have the following table:

| campaign_id | source_id | clicked | viewed |
----------------------------------------------
| abc         | xxx       | 0       | 0      |  
| abc         | xxx       | 1       | 0      |
| abc         | xxx       | 1       | 1      | 
| abc         | yyy       | 0       | 0      |    
| abc         | yyy       | 1       | 0      |    
| abc         | yyy       | 1       | 1      |    
| abc         | yyy       | 0       | 0      |

I need the following output:

xxx > Total: 3 // Clicked: 2 // Viewed 1
yyy > Total: 4 // Clicked: 2 // Viewed 1

I know that I have to use some sort of SUM() in my query, but I don't know how to differ between those multiple unique values in the source_id (something like foreach, idk).

How can I get such an output which shows stats from all unique source_ids by using only one query?

Answer 1

Try this:

SELECT source_id, (SUM(clicked)+SUM(viewed)) AS Total
FROM your_table
GROUP BY source_id