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use mysql
update user set Password=password('newpassword') where User='root';
flush privileges;
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MYSQLADMIN -u root -p PASSWORD mypasswd
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mysql> SET PASSWORD FOR myuser@localhost = PASSWORD('mypasswd');
5.ʹÓÃGRANT ... IDENTIFIED BYÓï¾ä
mysql> GRANT USAGE ON *.* TO myuser@localhost IDENTIFIED BY 'mypassword';


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