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grant all privileges on *.* to 'root'@'Ô¶³ÌµÇ½IP' identified by 'Ô¶³ÌµÇ½ÃÜÂë'
flush privileges;
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show databases; ÏÔʾÊý¾Ý¿â
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create database sample;
create table 't_user' (
    'id' int(11) not null auto_increment,
    'name' varchar(100) not null default '',
    primary key ('id')
) type=myisam;
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mysql> select CONCAT('My', 'S', 'QL');
-> 'MySQL'
mysql> select CONCAT('My', NULL, 'QL');
-> NULL
mysql> select CONCAT(14.3);
-> '14.3'
È磺update test set ......
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