Solved

SQL Sub Query

Posted on 2013-05-23
3
180 Views
Last Modified: 2013-05-23
Hi,

I expect this is a nice easy one.

I have a statement

SELECT a, Sum(b), Sum(c)
FROM tbl1
Group By a

But I want to restrict the results to certain records found in tbl2

Thanks
0
Comment
Question by:BananaFury
  • 2
3 Comments
 
LVL 65

Accepted Solution

by:
Jim Horn earned 500 total points
ID: 39190801
>But I want to restrict the results to certain records found in tbl2
Then join tbl1 to tbl2, and the ON clause would spell out the relationship between the two tables such that anything that doesn't match in both tables would not be returned.

SELECT tbl1.a, Sum(tbl1.b), Sum(tbl1.c)
FROM tbl1
   JOIN tbl2 ON tbl1.ID = tbl2.tbl1_ID    -- How the tables are joined 
WHERE tbl2.some_value = "something"   -- If you want to restrict it further based on specific criteria
GROUP BY tbl1.a

Open in new window

0
 

Author Closing Comment

by:BananaFury
ID: 39190940
Great, thanks!
0
 
LVL 65

Expert Comment

by:Jim Horn
ID: 39190942
Thanks for the grade.  Good luck with your project.  -Jim
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
Ever needed a SQL 2008 Database replicated/mirrored/log shipped on another server but you can't take the downtime inflicted by initial snapshot or disconnect while T-logs are restored or mirror applied? You can use SQL Server Initialize from Backup…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.

860 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