Briefly summarize 5 things what you have learned in the course so far.  

1. That mySQL workbench has ER diagrams. Which is honestly awesome because I have been using lucid charts for this which is way less powerful. Very cool!

2. I got a clearer understanding of how JOINs work and what the differences are between each type of JOIN. I feel like I can optimize some of my queries in the future.

3. What VIEWs are useful for. Honestly, I still think app developers should stay away from VIEWs and deal with the raw tables but, for DB admins I can see how VIEWs are very useful.

3.1 I still think they pollute the database though

4. I got a glimpse into what data structures engineers could use to create database engines like SQL. I don't know how useful this information is but, it's interesting at least.

5. My biggest takeaway is increase familiarity with SQL. I am more comfortable writing SQL queries without the assistance of an ORM.

List at least 3 questions you still have about databases.

1. What are some example of poor database management?

2. What strategies can I implement to avoid unmaintainable catastrophes?

3. What tools do big data engineers use at huge companies at Netflix or Google? I don't imagine they're querying their data via mySQL workbench community edition lol.