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一、修改/etc/oratab

实例名:/opt/oracle/product/19c/dbhome_1:N修改为实例名:/opt/oracle/product/19c/dbhome_1:Y

二、创建启动脚本并授权

vi /usr/bin/oracle19c.sh
######添加以下内容（注意修改路径）######
#!/bin/bash
/u01/app/oracle/product/19c/dbhome_1/bin/lsnrctl start
/u01/app/oracle/product/19c/dbhome_1/bin/dbstart /opt/oracle/product/19c/dbhome_1
######赋执行权限######
chmod +x /usr/bin/oracle19c.sh

三、创建service服务

vi /etc/systemd/system/oracle19c.service
######添加以下内容（注意修改路径）######
[Unit]
Description=Oracle19c
After=syslog.target network.target[Service]
LimitMEMLOCK=infinity
LimitNOFILE=65535
Type=oneshot
RemainAfterExit=yes
User=oracle
Environment="ORACLE_HOME=/u01/app/oracle/product/19c/dbhome_1"
ExecStart=/usr/bin/oracle19c.sh[Install]
WantedBy=multi-user.target

四、设置开机自启并进行测试

systemctl enable oracle19c# 查看服务状态
systemctl status oracle19c
# 启动
systemctl start oracle19c
# 停止
systemctl stop oracle19c
# 重启
systemctl restart oracle19c

reboot 重启验证：