我正试图从服务器上卸载ORDS，但它无法正常工作。我正在尝试卸载它，以便重新尝试安装。
卸载失败，出现以下错误：
Enter the name of the database server [dbname]:dbname
Enter the database listen port [1521]:1521
Enter 1 to specify the database service name, or 2 to specify the database SID [1]:1
Enter the database service name [servicename]:servicename
Requires to login with administrator privileges to verify Oracle REST Data Services schema.
Enter the administrator username:sys as sysdba
Enter the database password for sys as sysdba:
Confirm password:
Mar 24, 2020 3:16:47 PM oracle.dbtools.rt.config.setup.SchemaSetup verifyDBAUserConnection
WARNING: Failed to connect to user sys as sysdba jdbc:oracle:thin:@//dbname:1521/servicename
IO Error: Unknown host specified
如何更正此错误以卸载ORDS？
转到ORDS/params文件夹，在ORDS_params.properties文件中查找并确保db.hostname是正确的。应该是您的服务器的完全限定名称