Summary
We covered a lot of information in this chapter. First, we covered structured and unstructured databases, and what types of data can be expected in each. Also, we talked about relational and non-relational databases, and how they relate to structured and unstructured databases. Next, we covered database schemas such as star and snowflake schemas. Then, we covered data warehouses, data marts, and data lakes. Briefly, we touched on how to update stored data. Finally, we wrapped things up with different data types and file types. This is everything you need to know about the storage of data.
In the next chapter, we will go over how this data is collected in the first place!