Playlist Duration (chinook database)

Medium
21
1
92.9% Acceptance

Welcome to the SQL lab based on the SQLite chinook database. In this lab, you will be working on various challenges to test your SQL skills.

Instructions

  1. Database Connection: You do not need to establish any database connections. Everything is set up for you to start coding.

  2. Writing SQL Queries: Write your SQL queries in the provided editor. Make sure to stick to the exact table and column names as per the chinook database schema.

  3. Test Execution: Once you have written your SQL query for a challenge, run the test to see if it passes.

  4. Column Names: Be extremely cautious about the column names. They must match exactly as specified in the challenge for your test to pass.

  5. Query Formatting: For better readability and clarity, use double quotes around column and table names whenever possible.

Challenges

Objective:

Calculate the total duration of each playlist in milliseconds.

Tables Involved:

Playlist, PlaylistTrack, Track

Order By:

Order your result by Playlist.PlaylistId.

Final Columns in Output:

Your query should return the following columns:

Playlist.Name as Name,

SUM of Track.Milliseconds as TotalDuration.