Solved

Sql max column

Posted on 2009-05-14
5
390 Views
Last Modified: 2012-05-07
Hi

I am selecting records mulitple tables as follows

select distinct o.order_id, o.order_date, u.name, a.addressid
from orders o
inner join users u on o.user_id=u.user_id
inner join addresses a on u.user_id=a.user_id
where o.order_status='c'

I also want to add a column to the above which contains the max order_id from the above selected records.  

How can I acheive this?

Wing
0
Comment
Question by:WingYip
  • 3
  • 2
5 Comments
 
LVL 92

Accepted Solution

by:
Patrick Matthews earned 50 total points
ID: 24384489
select MAX(o.order_id) AS order_id, o.order_date, u.name, a.addressid
from orders o
inner join users u on o.user_id=u.user_id
inner join addresses a on u.user_id=a.user_id
where o.order_status='c'
GROUP BY o.order_date, u.name, a.addressid
0
 
LVL 1

Author Comment

by:WingYip
ID: 24384506
I am an idiot!
0
 
LVL 1

Author Closing Comment

by:WingYip
ID: 31581434
thanks
0
 
LVL 92

Expert Comment

by:Patrick Matthews
ID: 24384524
WingYip said:
>>I am an idiot!

No, you just need more coffee :)
0
 
LVL 1

Author Comment

by:WingYip
ID: 24384974
actually that doesnt work as it returns the highest order number within the grouping.

If there are a total of 300 records selected using the query above then I want to return the highest order_id out of those 300 records so that each row will show the same value for the MaxOrderId column (as below)

order_id    MaxOrderId
1                 4
2                 4
3                 4
4                 4
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

How to leverage one TLS certificate to encrypt Microsoft SQL traffic and Remote Desktop Services, versus creating multiple tickets for the same server.
Slowly Changing Dimension Transformation component in data task flow is very useful for us to manage and control how data changes in SSIS.
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…
Via a live example, show how to set up a backup for SQL Server using a Maintenance Plan and how to schedule the job into SQL Server Agent.

837 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