After I upgrade from UBBT6 to UBBT7 , My (administrator) PM box is full of 'Welcome' message which are automatically sent to users.
This cause my PM's box has 2200+ pages (20 message / page).

I want to delete all of these PMs with the same Subject 'Welcome' .
What SQL command should I write ?

Here is my table :

as the pm users table contains only topic id's it's impossible to cleanly purge everything with sql commands; however I have built a php script (free, cas I'm nice like that) which is capable of doing just this. You can get it at UBBDev here.

Thank you .
It helps me a lot , cleaning thousands of welcome messages ...

Not a problem; a lot of people had the same issues, figured something had to be done ;)...

One thing I'm thinking about is cleaning up non-existant pm's which are shown in the users table; as some people just purged the other two and left that one unaffected (granted, I provided the query to do it, so I feel semi responsible). But I haven't done much work on that one yet (though as I have the issue on my main forum, it will eventually be done); this one was just for the community to assist all imported users (as I'm sure other products will have similar issues as well , should they have welcome messages)

Well I don't see why a "correct" SQL statement(s) can't correctly do it. I don't see where PHP adds anything to the mix that can't be done manually.

Can you please explain in more detail why not (if this is too off-topic you can PM or e-mail me)

Thanks.

Simple, the PM_Users table only has a number to identify which pm's are which pm's; there is no content to identify which is a "welcome". You could take the id from the other tables, but if you're doing a broad delete with an sql statement, i highly doubt in your ability to log every private topic id to be able to purge them from the database.

The php script opens the private topic table, grabs the id, and purges that id in all 3 tables at once, then continues; all done on its own, and messages purged from all 3 tables.

Simply put, you can't search "welcome" in the _users table as all it contains is numbers.

isn't that what a JOIN command is for

Keep in mind that most people who come here don't even know what MySQL is, much less how to use it ;).

I actually thought the opposite. It seems like most people interested in admin'ing UBB.threads would know about MySQL.

And yea, a JOIN could certainly get this done.

you haven't met some of the larger site owners here then