troubleshooting Question

MS Access or Excel "check digit fomula"

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tnelsonx2x asked on
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Ok guys..Any help would be great.. What i'm trying to accomplish here is. Creating a function and/or formula in Excell or access that will calculate the check digit value of a 20 digit number. I have seen several sites that have VB code on how to do..however I do not know how to incorporate vb code into a Ms Access db and make it do my requested task...


ie... I have a field "barcodewithnocheckdigit"  and an example value for that field is "8260212616630008000" The check digit sum for that figure is 9. I have 40,000 records. Is it possible to have this code/query calculate and update the check digit value field?

The instructions on calculating a check digit value are here :

So I guess my question should be "how do I use this code in my database"  Please keep in mind that I have no programming knowledge whatsoever...therefore I need step by step information pretty much..

Thank in advance for your help.
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