MySQL 接続時の 1449 例外と 1045 例外の解決策の詳細な説明

mysql> grant all privileges on *.* to root@"%" identified by ".";
 
SQLException: The user specified as a definer ('ebook'@'%') does not exist：解决办法
grant all privileges on *.* to ebook@"%" identified by ".";
Query OK, 0 rows affected (0.00 sec)


mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
#Mysql

UPDATE mysql.user SET Password=PASSWORD('123456') WHERE User='root';

UPDATE mysql.user SET authentication_string=PASSWORD('root') WHERE USER='root';