Re: [PHP-DB] Multiple Inserts with mySQL

[Anthony]

hmm, I guess that would work. There is no way to have mySQL check for integrity for me is there? I read in a SQL book a while ago about wrapping multiple inserts in a select statement, that way if any part of the statement failed the whole thing would be rolled back. From my research though, it doesn't look like mySQL supports this. Am I right here? So far it looks like your idea could be the most reliable suggestions I've gotten, so I'll start working on that for now. Thanks.

- Anthony

Peter Beckman wrote:

Try this:

$stack is an array of hashes:

$stack[0] = array(0=>tablename, 1=>insertid());

For each insert you do, push an anonymous array on $stack which includes
the tablename and insertid of the insert.

Then as you continue your inserts, if any of them fail, call a function
which takes that array $stack, and iterate through it, deleting the rows
you just inserted. (see mysql_insert_id() function to get the insert ID)

If none of them do fail, then you are in the clear.  Either unset $stack or
ignore it.

Peter

On Wed, 13 Nov 2002, Anthony wrote:

I have to drop a lot of data into mySQL from PHP.  It will go into quite
a few different tables.  How can I maintain integrity of the entire
insert?  I need to do about a dozen inserts on four tables and I need to
insure that all the inserts are successful or that none of them get
done.  I'm sort of new at this, so please help me out.  Thanks.

- Anthony


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Peter Beckman            Systems Engineer, Fairfax Cable Access Corporation
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