Troubleshooting “Illegal mix of collations” error in mysql

Question

Am getting the below error when trying to do a select through a stored procedure in MySQL.

Illegal mix of collations (latin1_general_cs,IMPLICIT) and

Answer 1

One another source of the issue with collations is mysql.proc table. Check collations of your storage procedures and functions:

SELECT
  p.db, p.db_collation, p.type, COUNT(*) cnt
FROM mysql.proc p
GROUP BY p.db, p.db_collation, p.type;

Also pay attention to mysql.proc.collation_connection and mysql.proc.character_set_client columns.