Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw

Re^3: DBI fails to return an error code

by Neighbour (Friar)
on Oct 06, 2011 at 08:27 UTC ( #929955=note: print w/replies, xml ) Need Help??

in reply to Re^2: DBI fails to return an error code
in thread DBI fails to return an error code

Initially, all errors are set in $DBI::err. However, since all actions involving DBI (which can be from multiple DBI-sources, multiple databases, multiple queries using the same $dbh, $DBI::err will be overwritten quite a lot.
To avoid getting an error that is generated by an entirely different bit of code (which runs in another thread/process but shares the DBI environment, or even the $dbh), it is recommended to use the handle with the smallest scope (because that way you can be sure to a much better degree that nothing else has overwritten your errorcode/errorstring).
  • Comment on Re^3: DBI fails to return an error code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://929955]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (5)
As of 2016-10-26 05:32 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (335 votes). Check out past polls.