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Cinema's database | Aggregating Data
Practice SQL with Cinema Database
course content

Course Content

Practice SQL with Cinema Database

Practice SQL with Cinema Database

1. Aggregating Data
2. Ordering Data
3. Join Data

book
Cinema's database

Welcome to the SQL Bootcamp! In this course, we'll be working with data on cinemas and movies. We have data stored in the database with the next schema:

This database consists of six tables:

  • director contains info about te various movies directors.
  • manager contains a list of cinemas' managers.
  • genre stores list of movies genres.
  • cinema contains a list of cinemas. Each cinema has label column as a cinema's name, address, manager_id that refers to manager table, and city in which the cinema is located.
  • movie table stores data about label, year of release, genre_id, and director_id, as well as the movie rating.
  • schedule table contains records of ids' pairs: cinema_id and movie_id. It corresponds to which movie has the box office in which cinema and the total sales of this movie in this cinema.

Here we can see the records of the movie table.

To see other tables' content, run the select query using the code editor.

Note that some fields may contain NULL values; some movies may not be at the box office, or some directors have not produced films among present in the movie table. This database is created for studying, but it represents the real-like databases that can contain imperfect data or some extra data. Don't be afraid of it, but keep in mind.

The order of the rows matters. If you are unable to submit a valid query due to Incorrect Output, double check that the rows are arranged as requested in the assignment. Then check that the column names are correct.

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Section 1. Chapter 1
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book
Cinema's database

Welcome to the SQL Bootcamp! In this course, we'll be working with data on cinemas and movies. We have data stored in the database with the next schema:

This database consists of six tables:

  • director contains info about te various movies directors.
  • manager contains a list of cinemas' managers.
  • genre stores list of movies genres.
  • cinema contains a list of cinemas. Each cinema has label column as a cinema's name, address, manager_id that refers to manager table, and city in which the cinema is located.
  • movie table stores data about label, year of release, genre_id, and director_id, as well as the movie rating.
  • schedule table contains records of ids' pairs: cinema_id and movie_id. It corresponds to which movie has the box office in which cinema and the total sales of this movie in this cinema.

Here we can see the records of the movie table.

To see other tables' content, run the select query using the code editor.

Note that some fields may contain NULL values; some movies may not be at the box office, or some directors have not produced films among present in the movie table. This database is created for studying, but it represents the real-like databases that can contain imperfect data or some extra data. Don't be afraid of it, but keep in mind.

The order of the rows matters. If you are unable to submit a valid query due to Incorrect Output, double check that the rows are arranged as requested in the assignment. Then check that the column names are correct.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 1
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