Обсуждение: problems with transactions

I'm having problems opening a transaction through perl DBI
When I try to execute "begin work" using the DBI prepare and execute
functions I get an error:

$sth = $dbh->prepare("begin work");
$sth->execute();

returns this error when I run the perl script from a prompt:

please use DBI functions for transaction handling at
/usr/lib/perl5/site_perl/5.
005/i386-linux/DBD/Pg.pm line 114, <STDIN> chunk 2.
Can't call method "execute" on an undefined value

after seeing this I assumed that you just can't use the begin statement
accross the DBI but there has to be a way of opening a transaction (it even
says so in the error I got) ... I'm just not sure how.

can someone please shed some light on this... I've looked through the
archives but didn't find anything constructive.

Thanks
Scott

On Thu, Aug 31, 2000 at 09:43:52AM -0300, Campbell, Scott wrote:
>
> $sth = $dbh->prepare("begin work");
> $sth->execute();
>

[snip error]

>
> after seeing this I assumed that you just can't use the begin statement
> accross the DBI but there has to be a way of opening a transaction (it even
> says so in the error I got) ... I'm just not sure how.
>
> can someone please shed some light on this... I've looked through the
> archives but didn't find anything constructive.

man DBI

Look for the section on AutoCommit, and the section on Transactions
will also be useful. One sentence summary: Make sure autocommit is
off, transactions are begun automatically, and ended with commit or
rollback.

Jules