安裝環境

- CentOs 7.3 

安裝包下載

執行命令

1.下載檔案並上傳

2.進入上傳檔案根目錄

yum localinstall mysql57-community-release-el7-8.noarch.rpm

3:檢查是否安裝成功

 yum repolist enabled | grep "mysql.*-community.*"

顯示正常如下:

[root@izwz9evdgm0j8lrd5ttie8z package]# yum repolist enabled | grep "mysql.*-community.*"
mysql-connectors-community/x86_64 MySQL Connectors Community                  51
 

mysql-tools-community/x86_64      MySQL Tools Community                       63
mysql57-community/x86_64          MySQL 5.7 Community Server                 267

4:選擇安裝版本

vim /etc/yum.repos.d/mysql-community.repo 

#### Enable to use MySQL 5.5 修改enabled 1(表示安裝) 或 0(不安裝)
[mysql55-community]
name=MySQL
 
 5.5 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.5-community/el/7/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

# Enable to use MySQL 5.6
[mysql56-community]
name=MySQL 5.6 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/7/$basearch/
enabled=0
gpgcheck=1
 

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

[mysql-tools-preview]
name=MySQL Tools Preview
baseurl=http://repo.mysql.com/yum/mysql-tools-preview/el/7/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

5:啟動mysql服務

systemctl start mysqld

6:開機啟動

systemctl enable mysqld
systemctl daemon-reload

7:修改root 本地登入密碼

1.grep 'temporary password' /var/log/mysqld.log 獲取預設密碼
2.set password for 'root'@'localhost'=password('chenzhanmei');
3.flush privileges;

注意: 如果密碼忘記
vi /etc/my.conf 
在[mysqld] 下面新增 skip-grant-tables 

8:新增遠端登入使用者

GRANT ALL PRIVILEGES ON *.* TO 'zhanmei'@'%' IDENTIFIED BY 'Zhanmei1!' WITH GRANT OPTION;

9:配置預設編碼為UTF8

修改/etc/my.cnf配置檔案，在[mysqld]下新增編碼配置，如下所示：

[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'

10:預設配置檔案路徑：

配置檔案：/etc/my.cnf
日誌檔案：/var/log//var/log/mysqld.log
服務啟動指令碼：/usr/lib/systemd/system/mysqld.service
socket檔案：/var/run/mysqld/mysqld.pid

11:資料庫優化 自行百度