Using a database can address a variety of problems that might otherwise be solved programmatically. This is the preferred data-management strategy for programmers who enjoy working with databases and SQL in 90% of circumstances, and the first thought comes to mind when discussing data. If you're used to dealing with other databases or database management systems (DBMSs), you'll be pleased to learn that you can also apply your SQL skills to the iOS platform.
SQLite, a relational database, is the database that iOS apps can use. It's stored in a C-library that's built into the software you're about to use. There is no stand-alone SQLite server operating in the background like SQL Server, Oracle, or MySQL. All of the operations within the program must be handled using the SQLite library's various functions. It's worth noting that it's not a separate service or daemon that runs in the background and is linked to the app.
