How to load a column's information from sqlite database to tableview (iOS)

I am using an sqlite database to store my information in my iPhone app. I want retrieve information from my database and put it into a table view.

So now what I want to do is take that info and put it into an array. So this is my simple query:

NSString *querySQL = [NSString stringWithFormat:
                              @"select department from studentsDetail"];

So what I want to do is take the results from this query (department) and put that info into an array (department). There will be multiple data entries for the department column.