MySQL. Can't create table errno 150

Question

I have to create a database with two tables in MySQL, but the script fails with errno 150 (foreign key problem). I double-checked the foreign key fields to be the same on bo

Answer 1

I had a similar error on one of my tables. When checked column Collation was different, which worked once changed both columns to the same Collation type.

After reading most of the suggested solution here. I just thought it might be helpful if I just list down all the possibilities which could throw this error.

1, Check CASE of the Column 2, Check COLLATION of Columns 3, Check if there is a key created in both tables for the column (Unique, Primary)