Before anyone has a chance: Yes, i know it's a bad idea. Please, don't give me a lecture on how i should use a web service instead. Thanks.
So, how could this be done?
I found this bit http://www.karlkraft.com/index.php/2010/09/17/mysql-for-iphone-and-osx/ and thought it might do the trick. I got a bunch of ARC error messages, cleaned those out and got this error at runtime:
Detected an attempt to call a symbol in system libraries that is not present on the iPhone: pthread_cond_init$UNIX2003 called from function my_thread_init in image oms.
Do i need to use something like ODBC/C?
I know that the solution might be a lengthy one, that's fine. Would be great if someone could at least point me in the right direction.
EDIT:
Since people are keen to know the reason for opting not to use a web service, here it is:
If you're creating an in-house app, the added security of a web service is next to nothing. Working directly with the DB means i need to maintain less code. Plus i don't need to create hacky PHP scripts to get things done.
FINAL CONCLUSION:
I wanted to leave a message for people who're about to do the same thing: Don't :) Essentially your options are hacky server side scripts or Oracle proprietary mysql client you built yourself (and thus a hacky solution as well). Your choice but i'd strongly advice against it.
This might be the sort of thing that you are looking for:
I found it on this iphonedevsdk thread access mysql remote database iphone
Personally I would be only doing this if you really really wanted to.
If you wanted a canned solution, I also found this: Flipper
Or to do it yourself: Build MySql client library for iPhone/iPad
Its not really that hard to find a number of solutions
I needed the same thing (I understand your lecture-pain ;) ) so I wrote this: https://github.com/ciaranj/MySqueakQl it doesn't link to the mysql client libraries so no GPL issues, but it is a very minimal ... very 'fresh' i.e. untested implementation ... just my 2c.
I faced the same problem as you did. I searched and find this.
In http://www.acapela-for-iphone.com/ios-4-2-gm-small-problem-with-simulator
Jean-Michel Reghem Says: "It seems that Apple changes (again) something into the simulator (as in iOS 4.0)."
Also some people in that page say that this problem didn't show up in device, you can try.
The author has updated his code, and it worked.
Here is the link: http://www.karlkraft.com/index.php/2011/06/07/mysql-for-iphone-and-osx-version-2-0/
来源：https://stackoverflow.com/questions/9151644/connect-to-mysql-directly-from-an-ipad-app-not-via-php-etc