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mysql -u root -p vmware mysql>use mysql;
mysql>update user set host = '%' where user = 'root';
mysql>select host, user from user;
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GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'%' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
FLUSH   PRIVILEGES;
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GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'192.168.1.3' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
FLUSH   PRIVILEGES;
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GRANT ALL PRIVILEGES ON dk.* TO 'myuser'@'192.168.1.3' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
FLUSH   PRIVILEGES;
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1¡¢d:\mysql\bin\>mysql   -h   localhost   -u   root  //ÕâÑùÓ¦¸Ã¿ÉÒÔ½øÈëMySQL·þÎñÆ÷
2¡¢mysql>GRANT   ALL   PRIVILEGES   ON   *.*   TO   'root'@'%'   WITH   GRANT   OPTION  //¸³ÓèÈκÎÖ÷»ú·ÃÎÊÊý¾ÝµÄȨÏÞ
3¡¢mysql>FLUSH   PRIVILEGES  //ÐÞ¸ÄÉúЧ
4¡¢mysql>EXIT  //Í˳öMySQL·þÎñÆ÷
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mysql> use information_schema
Database changed
mysql> select concat(round(sum(index_LENGTH)/(1024*1024),2),'MB') as 'Data Size' from tables where table_schema='bbs';
+-----------+
| Data Size |
+-----------+
| 0.00MB    |
+-----------+
1 row in set (0.01 sec)
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| information_schema |
| mysql              |
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