Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

T SQL - Group By/Having Question

Posted on 2007-11-23
2
Medium Priority
?
3,338 Views
Last Modified: 2008-10-03
If i run the code below then i'll get the error returned - can anyone suggest the easiest way around this...

Thanks


Msg 116, Level 16, State 1, Line 4
Only one expression can be specified in the select list when the subquery is not introduced with EXISTS.
Select * from 
[users]
where email in 
(
	SELECT email, COUNT(email) AS NumOccurrences, companyid
	FROM [users]
	GROUP BY email, companyid
	HAVING (COUNT(email) > 1 )     
)

Open in new window

0
Comment
Question by:paulCardiff
2 Comments
 
LVL 23

Accepted Solution

by:
Ashish Patel earned 2000 total points
ID: 20338152
Try this.

Select * from
[users]
where email in
(
      SELECT email  FROM [users]
      GROUP BY email, companyid
      HAVING (COUNT(email) > 1 )    
)
0
 

Expert Comment

by:jourik
ID: 22631746
For clarification:

When stating a subquery to define a column criteria, it has to output one column only.
Otherwise, the parent query won't know what column to pick.
0

Featured Post

Fill in the form and get your FREE NFR key NOW!

Veeam is happy to provide a FREE NFR server license to certified engineers, trainers, and bloggers.  It allows for the non‑production use of Veeam Agent for Microsoft Windows. This license is valid for five workstations and two servers.

Question has a verified solution.

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

Why is this different from all of the other step by step guides?  Because I make a living as a DBA and not as a writer and I lived through this experience. Defining the name: When I talk to people they say different names on this subject stuff l…
This article shows gives you an overview on SQL Server 2016 row level security. You will also get to know the usages of row-level-security and how it works
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.

926 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