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Xalan ODBC extension - implementation

Subject: Xalan ODBC extension - implementation
From: Curtis Burisch <burisch@xxxxxxxxxxx>
Date: Tue, 22 Jan 2002 11:57:46 +0000
 Xalan ODBC extension - implementation

At my company are implementing an extension function to Xalan which 
queries an ODBC database. An SQL string is passed in, and the result 
set is returned. We are still in the process of defining how the result 
set will be returned.

When one row, one column (i.e. a single value) is returned, there is no 
problem. However, when multiple rows & columns are returned, I am 
unsure how to structure the data returned, or if indeed this is the 
right way to be going about the problem.

Our plan at the moment is to return an xml fragment, something like:

<Field name="fred">test1</Field>
<Field name="joe">test2</Field>
<Field name="fred">test3</Field>
<Field name="joe">test4</Field>

Now, obviously this would be returned as a string and won't be parsed 
into a tree fragment, and thus can't be interpreted by Xalan -- is 
there any way to do it?

It's also highly possible that we're re-inventing the wheel. Has 
anybody heard of or used an extension which would meet our requirements?

Many thanks for your time!

Best regards,
Curtis Burisch.


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