Mysql user management

# Create user
CREATE USER user IDENTIFIED BY 'password';

# Create and user (if doesn´t exist) and grant permissions
GRANT ALL ON *.* TO 'user'@'localhost' IDENTIFIED BY 'password';

# Update
UPDATE [table] SET [table_field]=[new_value] WHERE [id]=[id];

# Change user password
SET PASSWORD FOR 'user'@'host' = PASSWORD('newpass');