MySQL修改用户密码,新手必看
我们大家都知道MySQL修改用户密码这一问题一直是困扰新手的一个恶魔,在此问题的解决上新手经常会上范错误,而导致最终不能进入MySQL数据库,所以以下就是几个相关例子的介绍,望你能有所收获。 1、原来的密码是123456 C:\typeMySQL5.bat @echooff MySQL -ur
我们大家都知道MySQL修改用户密码这一问题一直是困扰新手的一个恶魔,在此问题的解决上新手经常会上范错误,而导致最终不能进入MySQL数据库,所以以下就是几个相关例子的介绍,望你能有所收获。
1、原来的密码是123456
<ol class="dp-xml"> <li class="alt">C:\>type MySQL5.bat </li> <li><span>@echo off </span></li> <li class="alt">MySQL<span> -uroot -p123456 -P3306 </span> </li> </ol>
正确的修改MySQL用户密码的格式是:
我们这里用
用户:root(可以换成其他的)
密码:woshiduide
来演示新密码。
<ol class="dp-xml"> <li class="alt"> <span><span>C:\</span><span class="tag">></span></span>MySQL<span><span>admin -uroot -p password woshiduide </span></span> </li> <li><span>Enter password: ****** </span></li> </ol>
于是修改成功。注意PASSWORD关键字后面的空格有好多人是这样修改的:
<ol class="dp-xml"> <li class="alt"> <span><span>C:\</span><span class="tag">></span></span>MySQL<span><span>admin -uroot -p password ‘woshiduide’ </span></span> </li> <li><span>Enter password: ****** </span></li> <li class="alt"> <span>C:\</span><span class="tag">></span>MySQL<span>admin -uroot -p password ‘woshiduide’ </span> </li> <li><span>Enter password: ********* </span></li> <li class="alt"><span>Warning: single quotes were not trimmed from the password by your command </span></li> <li><span>line client, as you might have expected. </span></li> <li class="alt"><span> </span></li> </ol>
而这个时候真正的密码是’woshiduide’
<ol class="dp-xml"> <li class="alt"> <span><span>C:\</span><span class="tag">></span></span>MySQL<span><span> -uroot -p’woshiduide’ </span></span> </li> <li> <span>Welcome to the </span>MySQL<span> monitor. Commands end with ; or \g. </span> </li> <li class="alt"> <span>Your </span>MySQL<span> connection id is 18 </span> </li> <li> <span>Server version: 5.1.17-beta-community-nt-debug </span>MySQL<span> Community Server (GPL) </span> </li> <li class="alt"><span>Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer. </span></li> <li>MySQL<span class="tag">></span><span> </span> </li> <li class="alt"><span> </span></li> </ol>
MySQL修改用户密码实际操作中而新手往往这样:
<ol class="dp-xml"> <li class="alt"> <span><span>C:\</span><span class="tag">></span></span>MySQL<span><span> -uroot -pwoshiduide </span></span> </li> <li><span>ERROR 1045 (28000): Access denied for user ‘root’@'localhost’ (using password: Y </span></li> <li class="alt"><span>ES) </span></li> </ol>
所以非常郁闷,BAIDU、GOOGLE的搜了一大堆。
我现在把密码改回去。
<ol class="dp-xml"><li class="alt"> <span><span>C:\</span><span class="tag">></span></span>MySQL<span><span>admin -uroot -p’woshiduide’ password 123456 </span></span> </li></ol>
2、还有就是可以直接进入MySQL,然后修改密码。
<ol class="dp-xml"> <li class="alt">MySQL<span class="tag">></span> use MySQL </li> <li><span>Database changed </span></li> <li class="alt">MySQL<span class="tag">></span><span> update user set </span><span class="attribute">PASSWORD</span><span class="attribute-value">PASSWORD</span><span> = PASSWORD(‘woshiduide’) where </span><span class="attribute">USER</span><span>=’root’ and H </span> </li> <li> <span class="attribute">OST</span><span>=’localhost’; </span> </li> <li class="alt"><span>Query OK, 1 row affected (0.05 sec) </span></li> <li><span>Rows matched: 1 Changed: 1 Warnings: 0 </span></li> <li class="alt">MySQL<span class="tag">></span><span> flush privileges; </span> </li> <li>MySQL<span class="tag">></span><span> exit </span> </li> <li class="alt"><span>Bye </span></li> <li> <span>C:\</span><span class="tag">></span>MySQL<span> -uroot -pwoshiduide </span> </li> <li class="alt"> <span>Welcome to the </span>MySQL<span> monitor. Commands end with ; or \g. </span> </li> <li> <span>Your </span>MySQL<span> connection id is 23 </span> </li> <li class="alt"> <span>Server version: 5.1.17-beta-community-nt-debug </span>MySQL<span> Community Server (GPL) </span> </li> <li><span>Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer. </span></li> <li class="alt">MySQL<span class="tag">></span><span> </span> </li> <li><span>Query OK, 0 rows affected (0.02 sec) </span></li> </ol>
3、还有一种就是用SET PASSWORD 命令修改:
<ol class="dp-xml"> <li class="alt"> <span><span>C:\</span><span class="tag">></span></span>MySQL<span><span>5.bat </span></span> </li> <li><span>Enter password: ****** </span></li> <li class="alt"> <span>Welcome to the </span>MySQL<span> monitor. Commands end with ; or \g. </span> </li> <li> <span>Your </span>MySQL<span> connection id is 8 </span> </li> <li class="alt"> <span>Server version: 5.1.17-beta-community-nt-debug-log </span>MySQL<span> Community Server (GPL) </span> </li> <li><span>Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer. </span></li> <li class="alt">MySQL<span class="tag">></span><span> set password for root@’localhost’ = password(‘woshiduide’); </span> </li> <li><span>Query OK, 0 rows affected (0.02 sec) </span></li> <li class="alt">MySQL<span class="tag">></span><span> flush privileges; </span> </li> <li><span>Query OK, 0 rows affected (0.09 sec) </span></li> <li class="alt">MySQL<span class="tag">></span><span> exit </span> </li> <li><span>Bye </span></li> </ol>
4、GRANT 也可以,不过这里不介绍。因为涉及到权限的问题。
以上的相关内容就是对MySQL修改用户密码的介绍,望你能有所收获。

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