Mysql Question posted in
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Mysql – function sum() 2 fields with same id

I am trying to get the sum of particular field. I am getting the SUM wrong when I try to get the values together.
I have this:

  • reference: id_skill, user, level_paid

More specifically the table reference as:

id_skill user level_paid
100 Red 1
100 Red 1
200 Red 2
200 Red 1

What I want as a result from my query is,

id_skill user level_paid
100 Red 2
200 Red 3 
SELECT   
  SUM(level_paid) AS total,
FROM reference
WHERE user = 'Red'
GROUP BY 
  id_skill

What I am trying to achieve is to get the sum of the field "level_paid" if the records of "id_skill" is more than 1.

Tags:

2

Answers


  1. 0

    You can achieve the result with the following query. The HAVING clause will ensure, you are only summing the values, which are more than 1 records, based on the GROUP BY condition e.g. at least two id_skill with the same value.

    SELECT
  id_skill,   
  user,
  SUM(level_paid) AS level_paid
FROM reference
WHERE user = 'Red'
GROUP BY 
  id_skill, user
HAVING COUNT(*) > 1
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  2. 0

    I think

    SELECT SUM(level_paid) AS total,

    The issue is if you want to print id_skill , and users too you need to update your query to

    SELECT SUM(level_paid) AS total, id_skill ,user FROM reference WHERE user = 'Red' GROUP BY id_skill

    also i have also noticed that there is an extra comma in your query before from also remove that extra comma

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