Maximum and Minimum Track Length

Easy
4
78.3% Acceptance

Welcome to this lab on SQLite, where you'll be working with the widely known sample database called Chinook. The Chinook database simulates a digital media store and includes data related to artists, albums, media tracks, invoices, and customers.

Your main goal is to dive deep into the database, uncover insights, and understand the structure and relationships present in the tables. We have designed challenges that will test your ability to query and manipulate data using SQLite.

Database Schema:

The primary table you'll be working with in this lab is the "Track" table. It holds information about each individual track, including its name, album, media type, genre, composer, milliseconds length, bytes, and unit price.

Column Details:

  • "TrackId": A unique identifier for each track.
  • "Name": Name of the track.
  • "AlbumId": The ID representing the album to which this track belongs.
  • "MediaTypeId": The ID representing the type of media of the track.
  • "GenreId": The ID representing the genre of the track.
  • "Composer": The composer of the track.
  • "Milliseconds": The length of the track in milliseconds.
  • "Bytes": The size of the track in bytes.
  • "UnitPrice": The price of the track.

Challenge : Track Length Extremes

In the vast collection of tracks in the chinook database, your task is to identify the extremes of track lengths.

Table Used:

Track

Details:

  • Retrieve: The longest and shortest track lengths from the database.

  • Columns to Retrieve:

    • MaxLength which should represent the longest track length (corresponding to the Milliseconds column in the Track table).
    • MinLength which should represent the shortest track length (again corresponding to the Milliseconds column).

  • Ordering: Results should be ordered by MaxLength in descending order.

Hint: Consider using aggregate functions to determine the maximum and minimum values from a column. Your final output should have the column names as MaxLength and MinLength.

Tips:

  • Always use double quotes for table and column names, like "TableName" or "ColumnName", to ensure clarity and to prevent any potential naming conflicts.
  • Remember to adhere to the exact column names, especially in the final results, as even a minor discrepancy can lead to a mismatch with the solution.
  • Pay close attention to the ordering; an accurate order can be crucial to matching the solution's output.