mooncold@debian-mooncold:~$ su
Password:

debian-mooncold:/home/mooncold# mysql -u xywu -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 49 to server version: 4.0.24_Debian-10sarge2-log

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> use pdf;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> create table book ( id INT(11), filename VARCHAR, filetype CHAR );
ERROR 1064: You have an error in your SQL syntax.  Check the manual that corresponds to your MySQL server version for the right syntax to use near ' filetype CHAR )' at line 1
mysql> create table book ( id INT(11) );
ERROR 1: Can't create/write to file './pdf/book.frm' (Errcode: 13)
mysql> create table book ( id INT(11), filename VARCHAR, filetype CHAR);
ERROR 1064: You have an error in your SQL syntax.  Check the manual that corresponds to your MySQL server version for the right syntax to use near ' filetype CHAR)' at line 1
mysql>

上面的 mysql的帐户 具有所有的权限 。我换 mysql的root帐户建立数据表的时候也是出现同样的问题。
我的系统是 debian 3。1的。安装的 mysql是系统所带的。
Apache+PHP+Mysql用起来都没问题。　　　　　　

> Errcode: 13
这个一般是权限不足引起的, 请确定mysql对相关目录有写权限　　　　　　

谢谢 。。。

查到是什么问题了 。。

修改 所在目录的权限后就ok了。