Solved

SUM in one-to-many relationship

Posted on 2008-09-29
1
174 Views
Last Modified: 2011-09-20
Say I have two tables:

tblCustomer and tblPurchases
a single customer can purchase many items from the store.
If I do a regular query, the customer's name is repeated for each purchase made.

Instead I would like a TOTAL of all their purchases (Quantity) for each customer.

So a list of all the customers, and the total amount each customer has purchased.
0
Comment
Question by:NO_CARRIER
1 Comment
 
LVL 43

Accepted Solution

by:
TimCottee earned 75 total points
ID: 22595916
Hello NO_CARRIER,

Select tblCustomer.NameColumn, Sum(tblPurchases.ValueCOlumn) From tblCustomer Inner Join tblPurchases On tblCustomer.KeyColumn = tblPurchases.KeyColumn

You will need to specify the correct column names of course.

Regards,

TimCottee
0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

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

Introduction Hopefully the following mnemonic and, ultimately, the acronym it represents is common place to all those reading: Please Excuse My Dear Aunt Sally (PEMDAS). Briefly, though, PEMDAS is used to signify the order of operations (http://en.…
'Between' is such a common word we rarely think about it but in SQL it has a very specific definition we should be aware of. While most database vendors will have their own unique phrases to describe it (see references at end) the concept in common …
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

920 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

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now