show variables where Variable_name like 'COLLATION%'
collation_connection utf8mb4_0900_ai_ci
collation_database utf8mb4_general_ci
collation_server utf8mb4_general_ci
show variables where Variable_name like 'COLLATION%'
collation_connection utf8mb4_0900_ai_ci
collation_database utf8mb4_general_ci
collation_server utf8mb4_general_ci