下載mysql相關的rpm包，或者wget去下載

解壓rmp

  tar -xvf mysql-5.7.37-1.el7.x86_64.rpm-bundle.tar

查詢是否安裝mysql或者mariadb

  rpm -qa|grep mysql
  rpm -qa|grep mariadb

如果存在則解除安裝

  rpm -e --nodeps xxx

依次進行安裝

   rmp -ivh mysql-xxx-common-xxx
   rmp -ivh mysql-xxx-libs-xxx
   rmp -ivh mysql-xxx-client-xxx
   rmp -ivh mysql-xxx-server-xxx
 

安裝完畢後，啟動mysql

  systemctl start mysqld

檢視臨時登入日誌

  vim /var/log/mysql.log

登入後修改密碼

  SET PASSWORD FOR 'root'@'localhost' = PASSWORD('xxxx');
  GRANT ALL PRIVILEGES ON  *.* TO 'jxcp'@'%' identified by 'xxx' WITH GRANT OPTION;
  flush privileges;

修改mysql配置檔案

  vim /etc/my.cnf
  #增加下面配置項
  sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
  lower_case_table_names=1
  innodb_buffer_pool_size=4G
  max_allowed_packet = 1G

 

重啟資料庫，建立資料庫

  systectl restart mysqld
  
  #建立資料庫
  CREATE DATABASE `jxcp_xxx` CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;