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mysql>update user set password=PASSWORD(‘123456’) where User='root';
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mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
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mysql>GRANT ALL PRIVILEGES ON *.* TO 'jack'@’10.10.50.127’ IDENTIFIED BY '654321' WITH GRANT OPTION;
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mysql>FLUSH RIVILEGES
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