In this chapter we explored a lot of App Inventor advanced features, namely a database. Google Fusion Tables makes it possible for us to store data in the backend. We learned how to create a new Fusion Table and how to establish Google API credentials so that our app is authorized to access Google Fusion Tables. Finally we learned how to insert, retrieve, and display data from the Fusion Tables.

You are amassing quite a programming toolkit! And in the next chapter, you will learn yet another tool to help expand your coding skills. A loop is a structure or sequence of instructions that enables you to iterate or repeat steps until certain conditions are met. This is handy because, instead of copying and pasting blocks to perform the same function for each item in a long list, we can program one set of blocks to execute repeatedly.