Re: Selecting data from XML

On 07/17/2012 03:56 AM, Victor Sterpu wrote:
> If I have a XML like this
> <?xml version="1.0" encoding="UTF-8"?>
> <Errors>
> <Error code="CLIN102" validFrom="1980-02-23"/>
> <Error code="CLIN103" validFrom="1980-02-23" validTo="2012-01-01"/>
> </Errors>
>
> can I write a query that will output the columns names and values like this?
>
> code;validFrom;validTo
> ------------------------------
> CLIN102;1980-02-23;
> CLIN103;1980-02-23;2012-01-01

http://www.postgresql.org/docs/9.1/static/functions-xml.html#FUNCTIONS-XML-PROCESSING

You should be able to do it with some xpath expressions. It probably
won't be fast or pretty. Consider using PL/Python, PL/perl, PL/Java, or
something like that to do the processing and return the resultset.

--
Craig Ringer