每小时总和 [英] Hourly sum of values

问题描述

我有一个具有以下结构和示例数据的表:

I have a table with the following structure and sample data:

STORE_ID |  INS_TIME  | TOTAL_AMOUNT
  2         07:46:01    20
  3         19:20:05    100
  4         12:40:21    87
  5         09:05:08    5
  6         11:30:00    12
  6         14:22:07    100

我需要获取每个 STORE_ID 的每小时总金额 TOTAL_AMOUNT.我尝试了以下查询，但我不知道它是否正确.

I need to get the hourly sum of TOTAL_AMOUNT for each STORE_ID. I tried the following query but i don't know if it's correct.

SELECT STORE_ID, SUM(TOTAL_AMOUNT) , HOUR(INS_TIME) as HOUR FROM VENDAS201302 
WHERE MINUTE(INS_TIME) <=59
GROUP BY HOUR,STORE_ID
ORDER BY INS_TIME;

推荐答案

SELECT STORE_ID,  
       HOUR(INS_TIME) as HOUR_OF_TIME,
       SUM(TOTAL_AMOUNT) as AMOUNT_SUM
FROM VENDAS201302 
GROUP BY STORE_ID, HOUR_OF_TIME
ORDER BY INS_TIME;

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