报错一

解决方法:listener.ora中增加如下代码段
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = racdb)
(ORACLE_HOME = /u01/app/oracle/product/19.3.0/dbhome_1)
(SID_NAME = racdb)
)
)
报错二

解决方法:alter system register;
报错一

解决方法:listener.ora中增加如下代码段
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = racdb)
(ORACLE_HOME = /u01/app/oracle/product/19.3.0/dbhome_1)
(SID_NAME = racdb)
)
)
报错二

解决方法:alter system register;