如何使用mysql获取每行的总金额？

Question

i want get the each user total amount. i have given table desired output

User Table

user_id  name
 1  Shanmugam
 2  Sharavanan
 3  Selvam

Payment Table

user_id amount
  1      5
  2      7
  1      5
  2      4

i want below output

name        total
shanmugam    10
sharavan    11
selvam      0

PLease any one help how to write mysql query

i have tried below query SELECT user.name
SUM(amount) AS Total FROM payment let join user on user.user_id =payent.user_id

Answer 1

Try something like that :

SELECT SUM(p.amount) AS total, u.name FROM Payment 
INNER JOIN User AS u ON u.id = p.user_id 
GROUP BY p.user_id;