I'm using a trigger to capture an audit trail. I want to convert the inserted / updated / deleted value to XML and store it in another table.

My trigger look like this:


    TRIGGER `MyDB`.`TriggerAudit` AFTER INSERT
    ON `MyDB`.`settings`
    INSERT INTO insert_audit_trail (user_uid, table_name, inserted_value) 
    VALUES ('the Username', 'the table name', 'Select to XML In Here')


In MS SQL Server I can use the FOR XML clause, but I don't know to do this in MySQL. Is there any solution for this?

1 Answer 1


It appears this has already been answered here.

The answer references this article.

From the answer:

From the article:

use strict;
use DBI;
use XML::Generator::DBI;
use XML::Handler::YAWriter;

my $dbh = DBI->connect ("DBI:mysql:test",
                       "testuser", "testpass",
                       { RaiseError => 1, PrintError => 0});
my $out = XML::Handler::YAWriter->new (AsFile => "-");
my $gen = XML::Generator::DBI->new (
                               Handler => $out,
                               dbh => $dbh
$gen->execute ("SELECT name, category FROM animal");
$dbh->disconnect ();
  • Yes, but its not a MySQL Query. any solution to integrate that into triggers or store procedures? Mar 7, 2014 at 15:36
  • If you already know the xml schema or can dynamically build it in the procedure, you can use UpdateXML - a description of which is detailed here. Mar 7, 2014 at 15:43
  • If you'd like, I could help with using the function. Could you please provide an example of a desired XML result and source data? Mar 7, 2014 at 15:44

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.