Sorry if this has been asked and answered a million times, I just can't find any info on it: In my "zencart/cache" folder there are many hundreds of "myDEBUG & AIM_Debug" log files.

Where are these coming from?

What are they for?

Is it okay to delete them?

Also, whenever my zencart database reaches a certain size, I get a message in admin saying I should delete/reset the database... BUT warns me that I should back it up first. However, it doesn't say where it is located in order to back it up.

How do I backup the database?

Thanks for helping out a newbie on these issues.