Solved

SQL Select -

Posted on 2016-10-06
8
61 Views
Last Modified: 2016-10-28
I need a SQL Select that would identify attribute value discrepancies within groups.   For example, I need to find all records within a group ID that different colors.  

Here is what my SQL table looks like:

Group ID   Product ID    Color
    1                300                Blue
    1                391                Blue
    1                237                Yellow
    2                100                Black
    3                500                Green
    3                501                Green
    4                921                Blue
    4                834                        
    4                512                Red

The expected results would be list all groups that contain color discrepancy within the group.

    1                300                Blue
    1                391                Blue
    1                237                Yellow
    4                921                Blue
    4                834                        
    4                512                Red
0
Comment
Question by:tmajor99
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
8 Comments
 
LVL 50

Expert Comment

by:Vitor Montalvão
ID: 41831745
Try this:
;WITH CTE_ColorGroup AS
(
	SELECT GroupID, Color, Count(1)
	FROM TableName
	GROUP BY GroupID, Color
	HAVING Count(1) > 1
)
SELECT T.*
FROM TableName T
	INNER JOIN CTE_ColorGroup G ON G.GroupID=T.GroupID

Open in new window

0
 
LVL 66

Assisted Solution

by:Jim Horn
Jim Horn earned 250 total points
ID: 41831746
Assuming 'Color discrepancy' means 'return all rows where for a given Group ID there are multiple Colors'...
SELECT yt.GroupID, yt.ProductID, yt.Color
FROM YourTable yt
   JOIN (
      SELECT GroupID, COUNT(DISTINCT Color) 
      FROM YourTable
      GROUP BY GroupID
      HAVING COUNT(DISTINCT Color) > 1) ytd ON yt.GroupID = ytd.GroupID
ORDER BY yt.GroupID, yt.ProductID

Open in new window

0
 
LVL 29

Accepted Solution

by:
Pawan Kumar earned 250 total points
ID: 41831762
Try this..

CREATE TABLE Colors
(
	   GroupID INT
	,  ProductID INT
	,  Color VARCHAR(30)
)
GO

INSERT INTO Colors VALUES
  (  1,                300                ,'Blue'), 
  (  1 ,               391                ,'Blue'), 
  (  1  ,              237                ,'Yellow'), 
  (  2  ,              100                ,'Black'), 
  (  3  ,              500                ,'Green'), 
  (  3  ,              501                ,'Green'), 
  (  4  ,              921                ,'Blue'), 
  (  4  ,              834                ,''),         
  (  4  ,              512                ,'Red') 
GO

--SOLUTION 1

SELECT GroupID, ProductID, Color FROM 
(
	SELECT GroupID, ProductID, Color , COUNT(*) OVER (PARTITION BY GroupID) c , COUNT(*) OVER (PARTITION BY GroupID,Color) ds
	FROM Colors
)t
WHERE c <> ds

--SOLUTION 2

SELECT c.*
FROM Colors c
CROSS APPLY
(
	SELECT GroupID, COUNT(DISTINCT Color) cnt
	FROM Colors 
	GROUP BY GroupID
	HAVING COUNT(DISTINCT Color) > 1
)x
WHERE x.GroupID = c.GroupID

--

Open in new window


Output

------------------------

GroupID      ProductID      Color
1              300                      Blue
1              391                      Blue
1              237                     Yellow
4             834      
4             921                    Blue
4              512                    Red
0
Revamp Your Training Process

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action.

 
LVL 29

Expert Comment

by:Pawan Kumar
ID: 41833010
@Author - Appreciate any feedback on the above .
0
 
LVL 29

Expert Comment

by:Pawan Kumar
ID: 41853331
Vitor Montalvão's solution is Incorrect.

CREATE TABLE Colors
(
	   GroupID INT
	,  ProductID INT
	,  Color VARCHAR(30)
)
GO

INSERT INTO Colors VALUES
  (  1,                300                ,'Blue'), 
  (  1 ,               391                ,'Blue'), 
  (  1  ,              237                ,'Yellow'), 
  (  2  ,              100                ,'Black'), 
  (  3  ,              500                ,'Green'), 
  (  3  ,              501                ,'Green'), 
  (  4  ,              921                ,'Blue'), 
  (  4  ,              834                ,''),         
  (  4  ,              512                ,'Red') 
GO

;WITH CTE_ColorGroup AS
(
	SELECT GroupID, Color, Count(1) [b]cnt[/b]
	FROM Colors
	GROUP BY GroupID, Color
	HAVING Count(1) > 1
)
SELECT T.*
FROM Colors T
	INNER JOIN CTE_ColorGroup G ON G.GroupID=T.GroupID

Open in new window


Incorrect output
----

GroupID      ProductID      Color
1               300                 Blue
1                391         Blue
1               237                Yellow
3       500                Green
3               501                Green
0
 
LVL 50

Expert Comment

by:Vitor Montalvão
ID: 41853339
Oh, right. Is the DISTINCT keyword that Jim has in his solution.
0

Featured Post

Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

Question has a verified solution.

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

I'm trying, I really am. But I've seen so many wrong approaches involving date(time) boundaries I despair about my inability to explain it. I've seen quite a few recently that define a non-leap year as 364 days, or 366 days and the list goes on. …
Ever wondered why sometimes your SQL Server is slow or unresponsive with connections spiking up but by the time you go in, all is well? The following article will show you how to install and configure a SQL job that will send you email alerts includ…
Familiarize people with the process of utilizing SQL Server functions from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Microsoft Ac…
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.

696 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