$ dbca -silent -deleteDatabase -sourceDB jingyu -sysDBAUserName sys -sysDBAPassword oracle
Connecting to database 4% complete 9% complete 14% complete 19% complete 23% complete 28% complete 47% complete Updating network configuration files 48% complete 52% complete Deleting instance and datafiles 76% complete 100% complete Look at the log file "/u02/app/oracle/cfgtoollogs/dbca/jingyu.log" for further details.至此，Oracle数据库静默安装相关内容已经完成。