MySQL访问限制的实际设置的2种方法
以下的文章主要讲述的是MySQL访问限制的实际设置的2种方法,一种是Grant 命令授权,另一种是设置用户的每一项权限,以下就是文章的具体内容的描述,希望会给你带来一些帮助在此方面。 我们主要是采用这两种方法来设置用户。 进入到MySQL(和PHP搭配之最佳组合
以下的文章主要讲述的是MySQL访问限制的实际设置的2种方法,一种是Grant 命令授权,另一种是设置用户的每一项权限,以下就是文章的具体内容的描述,希望会给你带来一些帮助在此方面。
我们主要是采用这两种方法来设置用户。
进入到MySQL(和PHP搭配之最佳组合)执行目录下(通常是c:MySQL(和PHP搭配之最佳组合)in)。输入MySQL(和PHP搭配之最佳组合)d-shareware.exe,输入MySQL(和PHP搭配之最佳组合) --user=root MySQL(和PHP搭配之最佳组合) ,不然不能添加新用户。进入到MySQL(和PHP搭配之最佳组合)>提示符下进行操作。
假设我们要建立一个超级用户,用户名为system,用户口令为manager。
MySQL访问限制的设置方法方法一
用Grant 命令授权,输入的代码如下:
<ol class="dp-xml"><li class="alt"><span><span>MySQL(和PHP搭配之最佳组合)</span><span class="tag">></span><span>GRANT ALL PRIVILEGES ON *.* TO system@localhost IDENTIFIED BY ’manager’ WITH GRANT OPTION; </span></span></li></ol>
应显示:Query OK, 0 rows affected (0.38 sec)
MySQL访问限制的设置方法方法二
对用户的每一项权限进行设置:
<ol class="dp-xml"><li class="alt"><span><span>MySQL(和PHP搭配之最佳组合)</span><span class="tag">></span><span>INSERT INTO user VALUES(’localhost’,’<p></p>system’,PASSWORD(’manager’), ’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’,’Y’); </span></span></li></ol>
对于3.22.34版本的MySQL(和PHP搭配之最佳组合),这里共14个"Y",其相应的权限如下(按字段顺序排列):
权限 表列名称 相应解释 使用范围
select Select_priv 只有在真正从一个表中检索时才需要select权限 表
insert Insert_priv 允许您把新行插入到一个存在的表中 表
update Update_priv 允许你用新值更新现存表中行的列 表
delete Delete_priv 允许你删除满足条件的行 表
create Create_priv 允许你创建新的数据库和表 数据库、表或索引
drop Drop_priv 抛弃(删除)现存的数据库和表 数据库或表
reload Reload_priv 允许您告诉服务器再读入授权表 服务器管理
shutdown Shutdown_priv 可能被滥用(通过终止服务器拒绝为其他用户服务) 服务器管理
process Process_priv 允许您察看当前执行的查询的普通文本,包括设定或改变口令查询 服务器管理
file File_priv 权限可以被滥用在服务器上读取任何可读的文件到数据库表 服务器上的文件存取
grant Grant_priv 允许你把你自己拥有的那些权限授给其他的用户 数据库或表
references References_priv 允许你打开和关闭记录文件 数据库或表
index Index_priv 允许你创建或抛弃(删除)索引 表
alter Alter_priv 允许您改变表格,可以用于通过重新命名表来推翻权限系统 表
如果创建用户时只有select、insert、update和delete权限,则允许用户只能在一个数据库现有的表上实施操作.
下面就可以创建我们要用到的数据库了,我们直接输入. 例如:我们要创建数据库名为XinXiKu,可用如下代码:
<ol class="dp-xml"><li class="alt"><span><span>MySQL(和PHP搭配之最佳组合)</span><span class="tag">></span><span>create database XinXiKu; </span></span></li></ol>
应显示:Query OK, 1 row affected (0.00 sec)
以上的相关内容就是对MySQL访问限制的设置方法的介绍,望你能有所收获。

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