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  • 1

    Processing, Storing, and Organizing Data

    Free

    Start your journey into database design by learning about the two approaches to data processing, OLTP and OLAP. In this first chapter, you'll also get familiar with the different forms data can be stored in and learn the basics of data modeling.

  • 2

    Database Schemas and Normalization

    In this chapter, you will take your data modeling skills to the next level. You'll learn to implement star and snowflake schemas, recognize the importance of normalization and see how to normalize databases to different extents.

  • 3

    Database Views

    Get ready to work with views! In this chapter, you will learn how to create and query views. On top of that, you'll master more advanced capabilities to manage them and end by identifying the difference between materialized and non-materialized views.

  • 4

    Database Management

    This final chapter ends with some database management-related topics. You will learn how to grant database access based on user roles, how to partition tables into smaller pieces, what to keep in mind when integrating data, and which DBMS fits your business needs best.

Initializing

Exercise

Creating and querying a view

Have you ever found yourself running the same query over and over again? Maybe, you used to keep a text copy of the query in your desktop notes app, but that was all before you knew about views!

In these Pitchfork reviews, we're particularly interested in high-scoring reviews and if there's a common thread between the works that get high scores. In this exercise, you'll make a view to help with this analysis so that we don't have to type out the same query often to get these high-scoring reviews.

Instructions 1/2

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  • Create a view called high_scores that holds reviews with scores above a 9.