Linux下用Perl进行MySQL数据库开发
Linux下用perl进行MySQL数据库开发需要安装MySQL,DBI和DBD。除了DBI比较好安装外,MySQL和DBD安装起来都没那么顺利,下面总结一
Linux下用perl进行MySQL数据库开发需要安装MySQL,DBI和DBD。除了DBI比较好安装外,MySQL和DBD安装起来都没那么顺利,下面总结一下安装错误解决方法:
一、MySQL数据库安装
1、下载MySQL的安装文件
安装MySQL需要下面两个文件:
MySQL-server-5.1.34.i386.rpm
MySQL-client-5.1.34.i386.rpm
下载地址为:http:,打开此网页,下拉网页找到“Linux x86 RPM downloads”项,,找到“Server”和“Client programs”项,下载需要的上述两个rpm文件。
2、安装MySQL
rpm文件是Red Hat公司开发的软件安装包,rpm可让Linux在安装软件包时免除许多复杂的手续。该命令在安装时常用的参数是 –ivh ,其中i表示将安装指定的rmp软件包,V表示安装时的详细信息,h表示在安装期间出现“#”符号来显示目前的安装过程。这个符号将持续到安装完成后才停止。
1)安装服务器端
在有两个rmp文件的目录下运行如下命令:
[root@test1 local]# rpm -ivh MySQL-server-5.1.34.i386.rpm
显示如下信息。
warning: MySQL-server-5.1.34.i386.rpm: V3 DSA signature: NOKEY, key ID 5072e1f5
Preparing... ########################################### [100%]
1:MySQL-server ########################################### [100%]
。。。。。。(省略显示)
/usr/bin/mysqladmin -u root password \'new-password\'
/usr/bin/mysqladmin -u root -h test1 password \'new-password\'
。。。。。。(省略显示)
Starting mysqld daemon with databases from /var/lib/mysql
如出现如上信息,服务端安装完毕。测试是否成功可运行netstat看Mysql端口是否打开,如打开表示服务已经启动,安装成功。Mysql默认的端口是3306。
[root@test1 local]# netstat -nat
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN
上面显示可以看出MySQL服务已经启动。
运行mysql命令测试mysql服务是否正常
错误一:
[root@localhost perl]# mysql
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
解决方法:#ln –s /var/lib/mysql/mysql.sock /tmp/mysql.sock
错误二:
# mysql
Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'
解决方法:将/tmp下的mysql.sock删除
若果机器上有不同版本的mysql(未安装成功的),“rpm -ivh”时会提示版本冲突,应卸载以前的版本。
查看不同MySQL版本信息:
[root@localhost perl]# rpm -qa | grep -i mysql
MySQL-server-community-5.1.30-0.rhel5
MySQL-client-community-5.1.30-0.rhel5
卸载:
[root@localhost perl]# rpm -e MySQL-server-community
[root@localhost perl]# rpm -e MySQL-client-community
这样卸载后再执行“rpm -ivh”进行安装。
2)安装客户端
运行如下命令:
[root@test1 local]# rpm -ivh MySQL-client-5.1.34.i386.rpm
warning: MySQL-client-5.1.34.i386.rpm: V3 DSA signature: NOKEY, key ID 5072e1f5
Preparing... ########################################### [100%]
1:MySQL-client########################################### [100%]
显示安装完毕。
3)进入mysql
[root@localhost DBD-mysql-2.9003]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 59 to server version: 5.1.34-community
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| test |
+--------------------+
3 rows in set (0.00 sec)
mysql>

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