BETA
Session Ready
Exercise

Removing duplicates

Let's dig a little bit deeper into the database. You want to find out which composers have written a song that is sold by eSymphony.

Since composers can write multiple songs, your results will probably include many duplicate values. If you want to select all unique values from a column, you can use the DISTINCT keyword.

Instructions 1/3
undefined XP
  • 1
  • 2
  • 3
  • Select the Composer column from the Track table.