Solved

SQL Statment

Posted on 2011-02-24
6
453 Views
Last Modified: 2012-05-11
i am looking for a sql statment that I run in VBA to get the record from my highest number from a column:
example :
WorkOrderNumber --------------StationID---------------------SequenceNumber
wrk123                                       LAB1                                 1
wrk123                                       LAB2                                 2
wrk123                                       LAB6                                 3

I would like the record from line 3 in my example
here is currently my SQL statment :

strsql = " select STATIONID,TECHID from SVC06100 where WORKORDNUM = '" & StrWORTVNum.Value & "' AND LNITMSEQ is the highest number"


thank you
0
Comment
Question by:taverny
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
6 Comments
 
LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 34975529
try
"select STATIONID,TECHID from SVC06100 A where WORKORDNUM = '" & StrWORTVNum.Value & "'" &
" AND STATIONID = select(stationid, max(LNITMSEQ) from SVC06100 B 
                       where B.stationid = A.stationid group by stationid)"

Open in new window

0
 

Author Comment

by:taverny
ID: 34975578
I am sorry , I am trying to understand the code and I am not sure why we have STATIONID =......

just to be clear i only want the value of STATIONID, TECHID for the LINITMSEQ that has the highest number.
0
 
LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 34975612

Its using a subquery to determine the stationid of the record with the highest LINITMSEQ
The first one has an error, change it to
"select STATIONID,TECHID from SVC06100 A where WORKORDNUM = '" & StrWORTVNum.Value & "' AND STATIONID = (select stationid, max(LNITMSEQ) from SVC06100 B where B.stationid = A.stationid group by stationid)"

Open in new window

0
Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

 
LVL 52

Accepted Solution

by:
Carl Tawn earned 450 total points
ID: 34975618
Why not just try:
"SELECT TOP 1 StationID, TechID FROM FROM Svc06100 WHERE WorkOrdNum = '" & StrWORTTVNum.Value & "' ORDER BY LNITMSEQ DESC"

Open in new window

0
 
LVL 32

Assisted Solution

by:Ephraim Wangoya
Ephraim Wangoya earned 50 total points
ID: 34975621
Sorry, my mistake
"select STATIONID,TECHID from SVC06100 A where WORKORDNUM = '" & StrWORTVNum.Value & "' AND LNITMSEQ = (select  max(LNITMSEQ) from SVC06100 B where B.stationid = A.stationid group by stationid)"

Open in new window

0
 

Author Comment

by:taverny
ID: 34975757
Well, I tried Carl suggestion and it did work perfectly  . Ewangoya, I am still not sure why you want me to group by stationID . But thanks for your help anyway.
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

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

Occasionally there is a need to clean table columns, especially if you have inherited legacy data. There are obviously many ways to accomplish that, including elaborate UPDATE queries with anywhere from one to numerous REPLACE functions (even within…
How to leverage one TLS certificate to encrypt Microsoft SQL traffic and Remote Desktop Services, versus creating multiple tickets for the same server.
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…

623 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