JupiterCrash,
You are breaking encapsulation. If DBI doesn't provide an mutator method for setting the RaiseError flag then you should expect weird behavior by mucking with the internals. With that said, you might want to try: 
delete $dbh->{RaiseError};

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Update (30 seconds later) After reading more of TFM, it seems that you are encouraged to muck with internals. I find this odd, but after recently porting Config::Tiny from p5 to p6 it isn't the first time I have seen it. DBI gives the example of limiting the scope as follows: 
{
    local $h->{RaiseError};  # localize and turn off for this block
}

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If you can't limit the scope and need to turn it off/on at will, I suggest using delete which was my first guess anyway.

Cheers - L~R

In reply to Re: Toggling dbi attribute within a connection? by Limbic~Region
in thread Toggling dbi attribute within a connection? by JupiterCrash

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