Foreign key issue MySQL

Question

I am having an issue with inputting data from a csv file into a mysql database using JDBC. I have already inserted a table called 'Poet' with the 'PoetName' being the priamry key.

I have populated that table with records that i have held in a CSV file, I then created another table called 'Poem' and it contains a foreign key which is 'PoetName' which references the poet table however whenever I try to populate the table with the CSV file for poems that contains matching values I am being displayed with the following error-

"Cannot add or update a child row: a foreign key constraint fails"

This is strange because the values I have for the primary key 'PoetName' are the same for the values I have used for the foreign key.

Does anyone have an idea of what the issue may be?

Thanks

Answer 1

If you're running into this error, one quick workaround is to add this line to your script:

SET FOREIGN_KEY_CHECKS = 0;

Another note is generally you want your primary key to be of type INT.