一.安装mysql，可能遇到如下异常

①ERROR 1045 (28000): Access denied for user 'ODBC'@'localhost' (using password)

http://jingyan.baidu.com/article/3ea51489e6cfbe52e61bba25.html

②FUNCTION mysql.passowrd does not exist

说明：password要使用大写，如下：

update user set password=PASSWORD("123456") where user="root"