一、安装数据库

1.重定向生成配置文件

cat >/etc/yum.repos.d/mysql.repo <<EOF
[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/x86_64/
enabled=1
gpgcheck=0
EOF

 

2.yum安装

yum -y install mysql-community-server

 

3.开启数据库

systemctl start mysqld

4.获取临时密码

grep  -i  "password" /var/log/mysqld.log

5.修改mysql密码

set global validate_password_policy=0;#长度无要求
set global validate_password_length=1;#复杂性无要求
 
alter user root@'localhost' identified by 'abc123';

6.退出数据库

quit

7.用新密码登录

mysql -u root -pabc123

二、安装mycli插件

1.yum安装Python

安装mycli，需要用Python安装

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel

2.准备安装包

make  /data
###创建data
cd  /data
去data目录下安装

3.解压缩包

tar zxvf Python-3.7.7_.tgz

4.切到Python下

cd Python-3.7.7/

5.编译

./configure --prefix=/usr/local/Python-3.7.7/

6.如果报错

如果报错：

configure: error: in `/data/Python-3.7.7': configure: error: no acceptable C

yum  -y install gcc####解决依赖环境问题

然后再./configure，执行一下上一条命令就好了

7.将高级语言翻译成二进制

make 

8.将文件复制到硬盘

make install

9.优化路径

ln -s  /usr/local/Python-3.7.7/bin/python3.7  /usr/bin/python37

ln -s /usr/local/Python-3.7.7/bin/pip3.7 /usr/bin/pip37

10.安装mycli

pip37 install mycli -i http://mirrors.aliyun.com/pypi/simple --trusted-host mirrors.aliyun.com

11.路径优化

ln -s /usr/local/Python-3.7.7/bin/mycli /usr/bin/mycli

12.用mycli登录数据库

mycli -u root -p 123123

三、Mycli作用

方便与初学者操作

1.  命令可以补全选择 (类似于输入法功能)

2.  可以上下回看命令