MySQL “ERROR 1005 (HY000): Can't create table 'foo.#sql-12c_4' (errno: 150)”

Question

I was working on creating some tables in database foo, but every time I end up with errno 150 regarding the foreign key. Firstly, here\'s my code for creating t

Answer 1

The referenced column must be an index of a single column or the first column in multi column index, and the same type and the same collation.

My two tables have the different collations. It can be shown by issuing show table status like table_name and collation can be changed by issuing alter table table_name convert to character set utf8.