I have this code to select all the fields from the \'jobseeker\' table and with it it\'s supposed to update the \'user\' table by setting the userType to \'admin\' where the
There's nothing obviously wrong with your code (apart from it being insecure with using non-escaped values directly from $_GET).
I'd suggest you try the following in order to debug:
If you don't find your problem then please post back your findings along with the structure of the tables you're dealing with