练习MySQL出错:
ERROR 1267 (HY000): Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (gbk_chinese_ci,COERCIBLE) for operation 'ifnull'
造成该错误的原因是由于新生成的表的字符集是latin1_swedish_ci,而原有的字符集需要utf8_general_ci,所以报错。
解决方法:修改所有表的字符集为utf8即可
alter table student_table convert to character set utf8;