After the computer name is changed, Oracle cannot start properly. Solution

After the computer name is changed, Oracle cannot start the problem properly. The solution has found a lot of information on the Internet, but none of them can solve my problem completely. The following is an example, for your reference (my Oracle is installed on the D Drive): 1: first, change D: two files (tnsname. ora, listener. ora) change the host name to your computer name. If these two files are modified, the pl/SQL connection to Oracle is not affected, but the OracleDBConsoleorcl service cannot be started normally. 2: Find the folder named "old computer name _ ORCL" in the Directory D: \ oracle \ product \ 10.2.0 \ db_1, change to "current computer name _ ORCL"; then find: D: change the "OC4J_DBConsole _ old computer name _ ORCL" folder under the \ oracle \ product \ 10.2.0 \ db_1 \ Solaris \ j2ee directory to "OC4J_DBConsole _ current computer name _ ORCL ", if the following error occurs, see step 1. C:> set oracle_sid = orcl C:> emctl start dbconsole Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0 Copyright (c) 1996,200 5 Oracle Corporation. all rights reserved. http: // old computer name: 1158/em/console/aboutApplication Starting Oracle Enterprise Manager 10g Database Control... the OracleDBConsoleorcl service is being started. the OracleDBConsoleorcl service cannot be started. System error. 3: Enter $ emca-config dbcontrol db in the command line and enter the following information: SID: XXXX Listener port number: 1521 Sys password, emctl start dbconsole again.