mysql 存儲過程 提示錯誤

declare  v_no varchar(200); 
declare  v_begin varchar(200); 
set v_no='111'; 

提示 
Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation 'find_in_set' 
修改 
alter table `test1`.`wave` convert to character set utf8 collate utf8_unicode_ci;