Question: command coming out wrong mysql> mysql> mysql> alter table songs add foreign key(artist_id) references artist(id); ERROR 1452 (23000): Cannot add or update a child row:

command coming out wrong

mysql> mysql> mysql> alter table songs add foreign key(artist_id) references artist(id); ERROR 1452 (23000): . Add 2 foreign key constraints to the songs table: artist_id and genre_id are the foreign keys. 15.1. You

mysql> mysql> mysql> alter table songs add foreign key(artist_id) references artist(id); ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails (music. #sql-5b_10, COM EFERENCES'artist' ('id')) mysql>

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