Re: Report for table data differences
- From: Marshall Barton <marshbarton@xxxxxxxxxx>
- Date: Mon, 27 Nov 2006 13:20:37 -0600
Sweetetc wrote:
You are awesome this worked great I do have a couple issue I had actually
just posted it to the Query section
I am comparing two large tables (3600 records) using <>. I have two issues.
1. One of the sets of column I can see visually match. ALL records in each
column have "N" yet the results are showing all records as not being equal.
I have checked the format which is text and the field size which is 255. Why
would this be showing false results? How can I get it to stop.
Is that because the mismatch is in a different column?
2. Another set of columns I am comparing is name. Where I pulled the data
from had different field lengths. So one column is John Smith School and the
field I am comparing truncated John Smith Sch How can I get these two columns
to appear to match?
This is an extremely difficult problem with no totally
correct solution. The best you can do is to try to come
close and provide a mechanism that you can use to improve
the matching of "similar" values.
I usually address this by creating a table of abbreviations
and their full text. This will allow you to create a query
that can substitute the full name for the abreviations.
When you come across a mismatched record because of an
abbreviation, add the abbreviation to the table so you don't
have to deal with it again. Unfortunately, humans can make
up more abbreviations than you can possible anticipate,
especially when you consider all possible typos.
--
Marsh
MVP [MS Access]
.
- References:
- Report for table data differences
- From: R Holtsbery
- Re: Report for table data differences
- From: Marshall Barton
- Re: Report for table data differences
- From: Sweetetc
- Re: Report for table data differences
- From: Marshall Barton
- Re: Report for table data differences
- From: Sweetetc
- Report for table data differences
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