Solved

SQL Query using Group

Posted on 2013-11-15
4
272 Views
Last Modified: 2013-11-15
What is the needed Query statement to find the total number of orders per person

Given:

Table A:
ID      OrderNumber
___________________
1      X123
2      X213
1      X345
2      x237
3      x554
4      x435
1      x333

Table B:
ID      FName      Lname
_____________________
1      Jon         Smith
3      Al            Berry
2      Sue        Jones
4      Jack        Jill

Result Table:
Name            Count
_____________________
Jon Smith      3
Sue Jones      2
Al Berry         1
Jack Jill           1
0
Comment
Question by:williambhowardjr
  • 3
4 Comments
 
LVL 48

Expert Comment

by:PortletPaul
ID: 39652685
select b.FName , b.Lname, count(*) as Count_of
from table_b as b
inner join table_a as a on b.id = a.id
group by b.FName , b.Lname
0
 
LVL 48

Expert Comment

by:PortletPaul
ID: 39652688
or:

select b.FName + ' ' + b.Lname as FullName, count(*) as Count_of
from table_b as b
inner join table_a as a on b.id = a.id
group by b.FName + ' ' + b.Lname
0
 
LVL 48

Accepted Solution

by:
PortletPaul earned 200 total points
ID: 39652695
by the way, if you want all names, then the count of the orders placed
then use either of the above

however, if you are only interested in those names that have ordered, then reverse the table sequence e.g.

select b.FName + ' ' + b.Lname as FullName, count(*) as Count_of
from table_a as a
inner join table_b as b on a.id = b.id
group by b.FName + ' ' + b.Lname
0
 

Author Closing Comment

by:williambhowardjr
ID: 39652703
Works Great - Thanks for the Help.
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

In this article I will describe the Detach & Attach method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
In this article I will describe the Copy Database Wizard method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
Via a live example, show how to shrink a transaction log file down to a reasonable size.
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.

831 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