What You’ve Learned
This covers the basics of working with relational databases. You’ve now learned how to do the basic database queries and manage the connection life cycle, and you’ve written a reporting application that serves binary content in action. As we’ve covered in this chapter, database records are easily mapped to Clojure data structures. Therefore, the Clojure community largely sees object-relational mapping libraries as unnecessary.
In the next chapter we’ll put together all the skills you’ve learned so far to write a picture-gallery application.