如何从用户的表销售中选择所有数据

Question

示例SQL表：

ID | USER | AMOUNT_SALES | TOTAL
--------------------------------
1  | John | 1500         | 2000 
2  | John | 1400         | 3000  
3  | James| 1200         | 4000   
4  | John | 1100         | 5000   
5  | Anie | 1900         | 8000 

所以我想

SELECT * FROM table 

并使用while显示HTML表格上的结果，但我不想重复用户。

我要创建的示例表：

User  | Amount Sales  | Total 
-----------------------------
John  | 4000          | 10000
James | 1200          | 4000
Anie  | 1900          | 8000

Answer 1

SELECT user, 
       sum(amount_sales) as sum_sales, 
       sum(total) as sum_totals
FROM table
group by user

Answer 2

SQL GROUP BY语法 SELECT column_name，aggregate_function（column_name） FROM table_name WHERE column_name运算符值 GROUP BY column_name;

http://www.w3schools.com/sql/sql_groupby.asp

如， 选择用户，总和（金额）作为总和 从表 按用户分组

Answer 3

用户总计总数和分组将满足您的需求：

SELECT user, SUM(amount_sales),SUM(total) FROM table GROUP BY user;