安装
rpm安装
1.设置yum源
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo #配置阿里云镜像#如果不是centos7.9,建议挂载本地isocat /etc/yum.repos.d/local.repo[local]name=localbaseurl=file:///opt/centosenabled=1gpgcheck=0mkdir -p /opt/centosmount /dev/sr0 /opt/centos
2.上传安装包
oracle-database-ee-19c-1.0-1.x86_64.rpm oracle安装包oracle-database-preinstall-19c-1.0-3.el7.x86_64.rpm oracle预装包

yum install -y oracle-database-preinstall-19c-1.0-3.el7.x86_64.rpm#会自动帮你安装所需要的依赖包yum install -y oracle-database-ee-19c-1.0-1.x86_64.rpm #安装oracle#安装位置在/opt下
3.安装数据库
初始化时间可能比较长,可能需要十五分左右(看自己分配空间的大小),需要耐心的等待它初始化完成,初始化如果报错了肯内存不足了
/etc/init.d/oracledb_ORCLCDB-19c configure
4.配置环境变量
su - oraclevim .bash_profile# .bash_profile# Get the aliases and functionsif [ -f ~/.bashrc ]; then. ~/.bashrcfi# User specific environment and startup programsexport ORACLE_BASE=/opt/oracleexport ORACLE_HOME=/opt/oracle/product/19c/dbhome_1export PATH=$PATH:$ORACLE_HOME/binexport ORACLE_SID=ORCLCDB
5.登录数据库
sqlplus / as sysdba
