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Exercises with artists, museums and their pieces of art
Exercises with the band members table
Exercises with employees, salaries and benefits


Great! Don't give up!


Check whether there are any pieces that were created by unknown artists. Show the names of these pieces together with the names of the museums that house the pieces in their collections.

Stuck? Here's a hint!

Unknown artists have a NULL entry under artist_id. Remember, you can use the operator IS NULL to filter the appropriate rows:

... artist_id IS NULL