?
Solved

How to retrieve distinct values from concat field in a group by query

Posted on 2014-03-25
2
Medium Priority
?
878 Views
Last Modified: 2014-03-25
Hi
Assuming the following rows in my table:
ID , Field1, Field2, ConcatField
1  , "test",    3,    "a,b"
2  , "tttt",     2,    "a,c,d"
3  , "test",   8,    "a"
4,  "test",   1,    "d"

Open in new window


I would like to run a query grouped by field1 and showing count(ID), sum(field2) and a field with all values in the concatfield, i.e
Field1, Count, Sum, ConcatField
"test",   3,  12,   "a,b,d"
"tttt",  1,  2,    "a,c,d"

Open in new window


How can i do that?
Thanks
Jaime
0
Comment
Question by:GreatSolutions
2 Comments
 
LVL 36

Accepted Solution

by:
ste5an earned 1500 total points
ID: 39953410
Use GROUP_CONCAT(), e.g.
SELECT 
  Field1,
  COUNT(*)
  SUM(Field2)
  GROUP_CONCAT(ConcatField)
FROM your_table
GROUP BY Field1;

Open in new window

0
 
LVL 2

Author Comment

by:GreatSolutions
ID: 39953537
Many thanks for the fast response!
It gave me duplicates inside the field, but group_concat ( distinct ConcatField ) did the trick!

Jaime
0

Featured Post

NFR key for Veeam Agent for Linux

Veeam is happy to provide a free NFR license for one year.  It allows for the non‑production use and valid for five workstations and two servers. Veeam Agent for Linux is a simple backup tool for your Linux installations, both on‑premises and in the public cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this series, we will discuss common questions received as a database Solutions Engineer at Percona. In this role, we speak with a wide array of MySQL and MongoDB users responsible for both extremely large and complex environments to smaller singl…
In this blog, we’ll look at how improvements to Percona XtraDB Cluster improved IST performance.
In this video, Percona Solution Engineer Dimitri Vanoverbeke discusses why you want to use at least three nodes in a database cluster. To discuss how Percona Consulting can help with your design and architecture needs for your database and infras…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
Suggested Courses
Course of the Month15 days, 8 hours left to enroll

850 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question