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chris misztur

Subject: Cross Referencing Country Names
Author: chris misztur
Date: 10 Jun 2013 02:17 PM

Hello.

I am trying to normalize an XML file from our legacy system. In the legacy system the country names are not constrained, so anything from USA, US, United States to U.S.A. is valid. In the target system, the country field is limited to 3 characters and must match the country codes in a control table. I was thinking of using a cross-reference XML document to find a country match.

Cross-Ref Document:
<Countries>
<Country LegacyName="USA" DRKY="US">
<Country LegacyName="CANADA" DRKY="CA">
<Country LegacyName="MEXICO" DRKY="MX">
<Country LegacyName="POLAND" DRKY="PL">
</Countries>

The DRKY attribute is actually a key to the JDEdwards country lookup table (F0005). As a second step I'd like to be able to lookup other data columns in the JDE table based on the key.

Would this be a good place to start:

http://www.stylusstudio.com/ssdn/default.asp?action=9&read=8422&fid=57

chris misztur

Subject: Cross Referencing Country Names
Author: chris misztur
Date: 10 Jun 2013 02:58 PM

I tried the below but it returns all countries' DRKY values. How can find a single match?

for $Country in $CountryLookups/Countries/Country
return
if(upper-case($Country/@LegacyName) = upper-case($AddressEntry/a:SYS_CO/text())) then (upper-case($Country/@DRKY))
else ($AddressEntry/a:SYS_CO/text())

chris misztur

Subject: Cross Referencing Country Names
Author: chris misztur
Date: 10 Jun 2013 03:57 PM

This seems to do the trick. Am I doing it the most efficient way? Should I cache the search in the if() predicate so I don't search twice ?

if(exists($CountryLookups/Countries/Country[@LegacyName = $AddressEntry/a:SYS_CO/text()]))
then (data($CountryLookups/Countries/Country[@LegacyName = $AddressEntry/a:SYS_CO/text()]/@DRKY))
else ($AddressEntry/a:SYS_CO/text())

Ivan Pedruzzi

Subject: Cross Referencing Country Names
Author: Ivan Pedruzzi
Date: 11 Jun 2013 12:22 PM

A good query optimizer does the right thing, here a more compact version

let $p := $CountryLookups/Countries/Country[@LegacyName = $AddressEntry/a:SYS_CO/text()]
return
if(exists($p)) then data($p/@DRKY))
else $AddressEntry/a:SYS_CO/text()

Ivan Pedruzzi
Stylus Studio Team

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