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
Solved

Data Type Mismatch in Criteria Expression in MS Access

Posted on 2011-03-11
14
432 Views
Last Modified: 2012-06-27
I have a linked tab delimited text file that will be updated monthly from a source outside my group, with the new file written to the LAN.  I have an Access 2007 database I am using to link back to that file, which is then the source of several queries.  One field, [Job Code], has both alpha and numeric values (A247, 709, L432, SS954) of varying lengths.

I have a query I run that needs to look at only job codes less than 1000.   I found a function below on line as a way to strip these values down to only their numeric component (please see attached code), and then tried to use <1000 as the critiera.  The query will run and return values, but within about 5 to 10 seconds, the "Data Type Mismatch..." error appears and all of the values change to a #NAME? value within the result set.

**Some things of note that may help are:  1) I only need the values that contain numeric values only.  If the string has an alpha character, it can be excluded 2) I've tried the Val(...) and CInt(...) functions and got the same issue 3) There are no blank values in the Job Code field 4) Character values will only be in the first two characters of the Job Code field ***

I'm hoping for a workaround or some guidance on what the underlying issue is so that I can simply filter these records in the actual query, which will be used to write data to other databases for various departments within our organization that aren't allowed to see data from other departments.
Public Function NumericValue( strFullValue As String) as String
 Dim lngLoop As Long
 Dim strReturn As String

 For lngLoop = 1 To Len(strFullValue)
 If IsNumeric(Mid(strFullValue,lngLoop,1)) Then
 strReturn = strReturn & Mid(strFullValue,lngLoop,1)
 End If
 Next lngLoop

 NumericValue = strReturn

 End Function

**********************

I then call it in the query as

JCode: NumericValue([Job Code])

Open in new window

0
Comment
Question by:UTSWPeds
  • 5
  • 3
  • 2
  • +2
14 Comments
 
LVL 120

Expert Comment

by:Rey Obrero (Capricorn1)
ID: 35109973
try using < "1000" as the criteria
0
 

Author Comment

by:UTSWPeds
ID: 35110023
Same issue...plus during the 5-10 seconds when I did get a result set, it showed records that were greater than 1000.
0
 
LVL 120

Assisted Solution

by:Rey Obrero (Capricorn1)
Rey Obrero (Capricorn1) earned 34 total points
ID: 35110159
try changing the function to return  Long instead of string

Public Function NumericValue( strFullValue As String) as Long
 Dim lngLoop As Long
 Dim strReturn As Long

 For lngLoop = 1 To Len(strFullValue)
 If IsNumeric(Mid(strFullValue,lngLoop,1)) Then
 strReturn = strReturn & Mid(strFullValue,lngLoop,1)
 End If
 Next lngLoop

 NumericValue = strReturn

 End Function

Open in new window



then, use this criteria

  < 1000


0
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 6

Expert Comment

by:Patrick Tallarico
ID: 35110177
In the query where you are using this code, are there any other tables joined to the text file table?  
0
 

Author Comment

by:UTSWPeds
ID: 35110279
Still the same issue, unfortunately.

My thoughts wander to whether or not this is an issue with the link back to the text file.  I've updated the link and opened the file in wordpad and it appeared fine, however.
0
 
LVL 51

Expert Comment

by:HainKurt
ID: 35110291
what is the query that you run
0
 

Author Comment

by:UTSWPeds
ID: 35110294
No other tables joined to this file.

0
 

Author Comment

by:UTSWPeds
ID: 35110317
The query is basically a select * from the file.  At this stage, I'm just trying to create smaller datasets for distribution to departments from the master file.  

The only field I do anything at all with is the Job Code, which I run the function against to capture the numeric values.
0
 
LVL 51

Expert Comment

by:HainKurt
ID: 35110383
can you please post a sample db containing the table with sample data, function that you use plus a sample query to show the issue...
0
 
LVL 6

Assisted Solution

by:Patrick Tallarico
Patrick Tallarico earned 34 total points
ID: 35110409
one way to test to see if it is the function, or the file is to temporarily import the text file into access as a regular local table, then run the same query with the same function on that to see if you get the same error.
0
 
LVL 51

Assisted Solution

by:HainKurt
HainKurt earned 34 total points
ID: 35110474
check this, it is working fine
SELECT Numericvalue(JobCode) AS JobNo, JobCode, Jobname
FROM Jobs
WHERE Numericvalue(JobCode)<500;


with this function in Module 1

Public Function NumericValue(strFullValue As String) As String
    Dim lngLoop As Long
    Dim strReturn As String

    For lngLoop = 1 To Len(strFullValue)
        If IsNumeric(Mid(strFullValue, lngLoop, 1)) Then
            strReturn = strReturn & Mid(strFullValue, lngLoop, 1)
        End If
    Next lngLoop

    NumericValue = strReturn
End Function

Open in new window

JobCodes.mdb
0
 
LVL 49

Accepted Solution

by:
Gustav Brock earned 398 total points
ID: 35110532
Try with:

JCode: NumericValue(Nz([Job Code]))

/gustav
0
 

Author Closing Comment

by:UTSWPeds
ID: 35110643
The NZ function worked perfectly, but I gave points to other contributors as well for effort and that given the information they had at hand, their solutions were likely workable as well.
0
 
LVL 49

Expert Comment

by:Gustav Brock
ID: 35110695
You are welcome!

/gustav
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

CCModeler offers a way to enter basic information like entities, attributes and relationships and export them as yEd or erviz diagram. It also can import existing Access or SQL Server tables with relationships.
Using SQL Scripts we can save all the SQL queries as files that we use very frequently on our database later point of time. This is one of the feature present under SQL Workshop in Oracle Application Express.
In Microsoft Access, learn the trick to repeating sub-report headings at the top of each page. The problem with sub-reports and headings: Add a dummy group to the sub report using the expression =1: Set the “Repeat Section” property of the dummy…
With Microsoft Access, learn how to specify relationships between tables and set various options on the relationship. Add the tables: Create the relationship: Decide if you’re going to set referential integrity: Decide if you want cascade upda…

860 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