mysql - 查询分组并创建分组总计

Question

我的 table 是这样的

id     views     country    
1       44        A
2       43        A
3       899       B
4       242       A
5       3204      B
etc.

I want to count how many times a country is occurring.

For example in above case country A is occurring 3 times. So for my query I want to be able to correctly show the how many times each record is occurring, but in addition to the count I want to add the views also. In above case I want that country A is occurring 3 times and with views as the sum of 44 + 43 + 242 = 329, but my query displays only the first views output: 44.

Here is my query

 SELECT count( * ) value, country, concat( country , '_', views ) prod 
 FROM tableA
 GROUP BY prod

Answer 1

SELECT country, COUNT(*), SUM(views) FROM tableA GROUP BY country

查看 sqlfiddle .