?
Solved

Updating a value in a column

Posted on 2013-06-10
7
Medium Priority
?
274 Views
Last Modified: 2013-06-10
I have an update query which I would like to run to update a value in a column for a particular set of records using the corresponding values from another table.

Currently in the "Update To" section of the update query (see attached), I am updating the value in the column, "Letter" with the corresponding value in the NSCPP_Students_Temp table. However, I would like to add an "N" before the value from the other table. So for instance, if the  NSCPP_Students_Temp table record has the value "C",  then I would like the value "NC" written to the column of NSCPP_Students. I tried using concatentation, i.e. "N" & [NSCPP_Students_Temp].Letter but it isn't working, i.e., it still writes the letter without the "N" in front.
Update-Query-No-Shows.jpg
0
Comment
Question by:geeta_m9
[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
  • 3
7 Comments
 
LVL 85
ID: 39235684
Can you switch to SQL view and show the full value of the SQL statement?
0
 
LVL 48

Accepted Solution

by:
Dale Fye earned 1600 total points
ID: 39235685
What does "isn't working" mean?  Normal syntax would be something like

Update yourTable
INNER JOIN yourOtherTable
ON yourTable.ID = yourOtherTable.ID
SET yourTable.[Letter] = "N" & yourOtherTable.[Letter]

However, depending on your primary keys, this may actually not be an updateable query.

Try writing it as a SELECT query:

SELECT yourTable.Letter, yourOtherTable.Letter as Letter2, "N" & yourOtherTable.Letter as Letter3
FROM yourTable
INNER JOIN yourOtherTable
ON yourTable.ID = yourOtherTable.ID

Does this query display the correct information?  Is it updateable?  Can you change a value in yourTable.Letter column from this SELECT query?
0
 

Author Comment

by:geeta_m9
ID: 39235700
Here is the SQL:

UPDATE [NSCPP Students] INNER JOIN NSCPP_Students_Temp ON [NSCPP Students].PID = NSCPP_Students_Temp.PID SET [NSCPP Students].Letter = "N" & [NSCPP_Students_Temp].[Letter];
0
Veeam Disaster Recovery in Microsoft Azure

Veeam PN for Microsoft Azure is a FREE solution designed to simplify and automate the setup of a DR site in Microsoft Azure using lightweight software-defined networking. It reduces the complexity of VPN deployments and is designed for businesses of ALL sizes.

 
LVL 48

Expert Comment

by:Dale Fye
ID: 39235724
And that is not working?

Did you try the SELECT statement?  Is the query updateable when you do it as a SELECT?

Is PID the primary key in table [NSCPP Students]?

Is your data in Access or linked from some other relational database?
0
 

Author Comment

by:geeta_m9
ID: 39235745
If found out the error did not lie with the query but by my "Temp" table not having any records in it to begin with because the data wasn't being imported into the correct table. I should checked the code.

I fixed the problem and it is now working.

I appreciate your help and I am sorry for wasting your time.
0
 
LVL 48

Expert Comment

by:Dale Fye
ID: 39235768
Trust me, we have all made that mistake at least once.

You solved your own problem, I don't have a problem with you withdrawing the points you awarded me.  Just click the "Request Attention" hyperlink on your original post and indicate you would like to reallocate points.

Dale
0
 

Author Comment

by:geeta_m9
ID: 39235776
That's ok. Your suggestions helped point me in the right direction.
0

Featured Post

Get proactive database performance tuning online

At Percona’s web store you can order full Percona Database Performance Audit in minutes. Find out the health of your database, and how to improve it. Pay online with a credit card. Improve your database performance now!

Question has a verified solution.

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

After seeing numerous questions for Dynamic Data Validation I notice that most have used Visual Basic to solve the problem. This suggestion is purely formula based and can be used in multiple rows.
New style of hardware planning for Microsoft Exchange server.
The viewer will learn how to use the =DISCRINV command to create a discrete random variable, use this command to model a set of probabilities and outcomes in a Monte Carlo simulation, and learn how to find the standard deviation of a set of probabil…
Learn how to create and modify your own paragraph styles in Microsoft Word. This can be helpful when wanting to make consistently referenced styles throughout a document or template.
Suggested Courses

770 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