grant错误，解释得详细的加分！
没学过数据库，照抄书上的．
mysql>   grant   all   on   depot_development.*   to   'dave '@ 'localhost ';
这个句子是什么意思，为什么会导致出错？
ERROR   1133   (42000):   Can 't   find   any   matching   row   in   the   user   table

上面这个是什么错误？
＝＝＝＝＝＝＝＝
Enter   password:   *********
Welcome   to   the   MySQL   monitor.   Commands   end   with   ;   or   \g.
Your   MySQL   connection   id   is   1   to   server   version:   5.0.27-community-nt

Type   'help; '   or   '\h '   for   help.   Type   '\c '   to   clear   the   buffer.
mysql>   show   databases;
+--------------------+
|   Database   |
+--------------------+
|   information_schema   |
|   depot_development   |
|   depot_production   |
|   depot_test   |
|   mybook   |
|   mysql   |
|   test   |
+--------------------+
7   rows   in   set   (0.00   sec)

mysql>   grant   all   on   depot_development.*   to   'dave '@ 'localhost ';

ERROR   1133   (42000):   Can 't   find   any   matching   row   in   the   user   table

mysql>   grant   all   on   depot_test.*   to   'dave '@ 'localhost ';

ERROR   1133   (42000):   Can 't   find   any   matching   row   in   the   user   table

mysql>   grant   all   on   depot_production.*   to   'prod '@ 'localhost '   identified   by   'wibb
le ';
Query   OK,   0   rows   affected   (0.00   sec)


------解决方案--------------------
grant all privileges on depot_development.* to 'dave '@ 'localhost ';
------解决方案--------------------
这是Rails敏捷Web开发那本书上的例吧.

你上面没有dave这个用户.

我是用
mysql> grant all on depot_development.* to 'root '@ 'localhost ';
就好了.

然后成功提示
Query OK.0 row affected (0.08sec)

------------------------------
qifanz┊Gmail.com
------解决方案--------------------
grant all privileges(所有权限) on depot_development.*（在depot_development的所有表上） to 'dave '@ 'localhost '（用户）identified by '123456 '(用户密码：123456);