使用rpm包安装MySQL的时候是把各个子目录分别安装到相应目录下了,不存在那个/usr/local/mysql这个目录,并且使用rpm -ql mysql的
使用rpm包安装MySQL的时候是把各个子目录分别安装到相应目录下了,不存在那个/usr/local/mysql这个目录,并且使用rpm -ql mysql的时候会显示“package mysql is not installed”,,具体可以参考一下的一个帖子:
[rpm安装 路径]mysql的rpm包默认安装路径问题
请教高手帮我解决个 问题.由于我装的是RPM包,没能像装源代码文件那样指定路径,我在网上找了很多,都说在/usr/local/mysql路径下,可是我查看它并不存 在,所以请问您我现在要使用mysql提供的API所在的头文件和库函数都被默认安装到哪了? 即那个已经安装的mysql跟目录(包括bin,data,include,lib…)在哪个位置?
tchhyc 2005-12-15 02:27
安装的时候可以指定路径–prefix=/usr/local/mysql
你现在可以用rpm -ql mysql 查看一下
学会用man
man rpm
2519622 2005-12-15 03:14
我用rpm -ql 查询,怎么会提示没有安装呢? 我用mysql都可以正常连接的,怎么会这样?我怎么才能知道装在哪了呢?
或者我卸载它,应该到哪个目录呢?
tchhyc 2005-12-15 04:50
rpm -qa|grep mysql 看看
如果没有说明你不是用rpm安装mysql得
2519622 2005-12-15 06:08
谢谢你的答复啊!
我用rpm -qa | grep -i mysql查到了,没错,我装好了那些rpm包,也能正常通信,现在我就是找不到那个mysql根目录(包括bin,data,include,lib…),我主要想知道那些mysql提供的API都在哪!
怎么办呢?
tchhyc 2005-12-15 06:16
查找bin include lib
find / -name mysql.h -print
find / -name libmysqlclient.so -print
find / -name mysql -print
查看data
mysql>show variables; //datadir
2519622 2005-12-15 06:49
找到了!太感谢你了!
find指令还挺好用的!
看来rpm包是把各个子目录分别安装到相应目录下了,不存在那个根目录.
[来源]?tid=669043&page=1#pid4526427
由上面的帖子可以知道,用RPM进行安装的时候,MySQL下的子目录被分散开,分别放在了以下几个目录下:
(RHEL5.4 RPM 安装MySQL)
[root@rhel5 ~]# find / -name mysql -print
/etc/logrotate.d/mysql
/etc/rc.d/init.d/mysql
/var/lib/mysql
/var/lib/mysql/mysql
/var/lock/subsys/mysql
/usr/lib/mysql
/usr/include/mysql
/usr/share/mysql
/usr/bin/mysql
而 data默认放在:/var/lib/mysql
mysql默认安装在了:/usr/share/mysql中

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MySQL is suitable for beginners because: 1) easy to install and configure, 2) rich learning resources, 3) intuitive SQL syntax, 4) powerful tool support. Nevertheless, beginners need to overcome challenges such as database design, query optimization, security management, and data backup.

Yes,SQLisaprogramminglanguagespecializedfordatamanagement.1)It'sdeclarative,focusingonwhattoachieveratherthanhow.2)SQLisessentialforquerying,inserting,updating,anddeletingdatainrelationaldatabases.3)Whileuser-friendly,itrequiresoptimizationtoavoidper

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MySQL is not only a database management system (DBMS) but also closely related to programming languages. 1) As a DBMS, MySQL is used to store, organize and retrieve data, and optimizing indexes can improve query performance. 2) Combining SQL with programming languages, embedded in Python, using ORM tools such as SQLAlchemy can simplify operations. 3) Performance optimization includes indexing, querying, caching, library and table division and transaction management.

MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.


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