Producing an efficient data query is not just about finding the appropriate load and transform functions and placing them in the correct sequence. It is also about extending, adjusting, and maintaining the process. This can be either to correct an error once the query is being tested or to adapt a query to new requirements. This chapter will introduce you to some of the techniques that you can apply to manage and extend existing queries.
Creating an eye-catching dashboard can mean sourcing data from a large range and variety of queries. It may also imply ...
