Oracle Java Blog

Oracle Enterprise Manager Port 5500 Not Working When Called From Remote Machine

Sat, 19 Feb 2022 09:23:34 GMT

8 Using Enterprise Manager Express

You can leverage all the functionality and ease of use of Enterprise Manager (EM) to manage your XE database.

To connect to EM Express, go to https://localhost:5500/em from the browser on the system.

Port 5500 is the default port assigned during database creation. During install, we automatically choose next port (for example, 5501) if 5500 is already used. Then you must provide that port.

8.1 Making Oracle Database EM Express Available to Remote Clients

After you install Oracle Database XE, EM Express is only available from the local server, it cannot be accessed remotely.

To make EM Express available to remote clients, start SQL*Plus, log in as SYSTEM, and execute the following procedure. From the command prompt run the following commands. In the commands, replace "<oracle_home>" with the path to your Oracle Home; see Table 5-1 for more details about Oracle Home.

cd <oracle_home>\bin

sqlplus system

Enter password: SYSTEM_password

SQL> EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);

Source: https://docs.oracle.com/en/database/oracle/oracle-database/18/xeinw/using-enterprise-manager-express.html

ORA-28040: No matching authentication

Tue, 15 Dec 2020 02:13:55 GMT

Bug 14575666 In 12.1, the default value for the SQLNET.ALLOWED_LOGON_VERSION parameter has been updated to 11. This means that database clients using pre-11g JDBC thin drivers cannot authenticate to 12.1 database servers unless theSQLNET.ALLOWED_LOGON_VERSION parameter is set to the old default of 8. This will cause a 10.2.0.5 Oracle RAC database creation using DBCA to fail with the ORA-28040: No matching authentication protocol error in 12.1 Oracle ASM and Oracle Grid Infrastructure environments. Workaround: Set SQLNET.ALLOWED_LOGON_VERSION=8 in the oracle/network/admin/sqlnet.ora file.

Sources:

https://www.ibm.com/mysupport/s/question/0D50z000062khoMCAQ/after-upgrading-to-oracle-12c-database-i-start-getting-ora28040-no-matching-authentication-protocol?language=en_US

http://www.dba-oracle.com/t_ora_12638_credential_retrieval_failed.htm

Oracle Business Intelligence

Thu, 12 Mar 2020 14:03:42 GMT

https://www.oracle.com/middleware/technologies/bi-enterprise-edition-downloads.html

https://www.oracle.com/middleware/technologies/business-intelligence-v12214-downloads.html

Oracle AWR report in-depth analysis

Tue, 22 Oct 2019 07:21:00 GMT

https://www.ibm.com/downloads/cas/WNK5D2QZ

https://oracle-base.com/articles/10g/automatic-workload-repository-10g

https://www.oracle.com/technetwork/database/manageability/diag-pack-ow09-133950.pdf

http://nonfunctionaltestingtools.blogspot.com/2015/04/steps-to-analyze-awr-report-in-oracle.html

http://logic.edchen.org/how-to-generate-awr-report-in-oracle/

https://www.quora.com/How-do-I-analyze-an-AWR-report-in-Oracle-database-performance-testing

Steps to Analyze AWR Report in Oracle

Tue, 22 Oct 2019 03:43:19 GMT

http://nonfunctionaltestingtools.blogspot.com/2015/04/steps-to-analyze-awr-report-in-oracle.html

RMAN Full Backup & Demo

Tue, 30 Jul 2019 10:50:14 GMT

https://blog.zeddba.com/2019/05/23/rman-full-backup-demo/

Exploring the new SSB Schema with SQL Developer Web

Tue, 30 Jul 2019 10:49:00 GMT

https://www.thatjeffsmith.com/archive/2019/06/exploring-the-new-ssb-schema-with-sql-developer-web/

Oracle Docker Images

Tue, 30 Jul 2019 07:19:03 GMT

https://github.com/oracle/docker-images

EM 13c Install / Upgrade : _allow_insert_with_update_check Prerequisite Check Failed

Tue, 30 Jul 2019 07:10:00 GMT

13cR2 OMS Install / Upgrade fails during prerequisite checks with a message on the 12.2 Database Connection Details page:

Check if the parameter _allow_insert_with_update_check is TRUE

Prior to Install / Upgrade of EM 13.2:

1. For for Enterprise Manager 13.2 repository, the compatible initialization parameter should be set to 12.1.0.0 or higher.

Confirm with:

SQL> show parameter compatible

2. Ensure the _allow_insert_with_update_check database initialization parameter is set to be true for the repository database.

SQL>alter system set "_allow_insert_with_update_check" = true;

Source: https://community.oracle.com/blogs/vthiruve/2017/07/03/em-13c-install-upgrade-allowinsertwithupdatecheck-prerequisite-check-failed

EM Express versus EM Cloud Control

Thu, 25 Jul 2019 05:10:00 GMT

https://petewhodidnottweet.com/2015/05/em-express-versus-em-cloud-control/

https://www.oracle.com/technetwork/database/manageability/emx-intro-1965965.html

How to Run a Java .Jar File

Tue, 18 Jun 2019 18:47:00 GMT

1) Install the JDK

2) Check if UAC needs to be disabled and then open a command prompt (Run As Administrator)

3) Navigate to the directory that has the jar file you wish to run

3) use the command:

"C:\Program Files\Java\jdk1.8.0_211\bin\java.exe" -jar myjarfile.jar

Debugging PL/SQL in Apex from SQL Developer

Fri, 07 Jun 2019 15:54:00 GMT

https://www.thatjeffsmith.com/archive/2019/05/debugging-pl-sql-in-apex/

Oracle Outlines

Fri, 07 Jun 2019 15:02:11 GMT

https://oracle-base.com/articles/misc/outlines

http://psoug.org/reference/outlines.html

https://docs.oracle.com/cd/E25178_01/server.1111/e16638/outlines.htm

https://blog.dbi-services.com/sql-plan-stability-in-11g-using-stored-outlines/

Create Scheduled Job in Oracle to Execute Batch File

Sat, 12 Jan 2019 17:23:06 GMT

from AskTime:

I just did this on my machine with no problems -

C:\>type c:\temp\demo.cmd
@echo off
echo Hello > c:\temp\demo.out
dir c:\temp >> c:\temp\demo.out
exit

SQL> declare
  2    vname varchar(20) := 'DEMOJOB';
  3  BEGIN
  4    begin dbms_scheduler.drop_job (vname); exception when others then null; end ;
  5    dbms_scheduler.create_job(
  6      job_name => vname,
  7      job_type => 'EXECUTABLE',
  8      job_action => 'C:\Windows\System32\cmd.exe',
  9      number_of_arguments => 2,
 10      enabled => FALSE);
 11    dbms_scheduler.set_job_argument_value( job_name => vname, argument_position => 1, argument_value => '/c');
 12    dbms_scheduler.set_job_argument_value( job_name => vname, argument_position => 2, argument_value => 'c:\temp\demo.cmd');
 13    dbms_scheduler.enable( vname);
 14
 15  END;
 16  /

PL/SQL procedure successfully completed.

So perhaps use a CMD file rather than a BAT file.

Also, on Windows, check the the "Oracle JobScheduler" service is running. If that isnt running you'll get errors in your alert log, eg, I disabled my service and I see this:

2017-09-15T08:46:30.042872+08:00
Errors in file C:\ORACLE\diag\rdbms\db122\db122\trace\db122_j000_10140.trc:
ORA-12012: error on auto execute of job "MCDONAC"."DEMOJOB"
ORA-27370: job slave failed to launch a job of type EXECUTABLE
ORA-27300: OS system dependent operation:accessing job scheduler service failed with status: 2
ORA-27301: OS failure message: The system cannot find the file specified.
ORA-27302: failure occurred at: sjsec 5
ORA-27303: additional information: The system cannot find the file specified.

Force Oracle Database Listener to Listen on Specific IP Addresses For VPN Connections

Sat, 12 Jan 2019 14:30:00 GMT

1) First, add the IP address of the database server (the ip address of the machine on the VPN network) as a listening location in Net Manager, and also specify the Port Number to connect to the database (must be a unique port number).

2) If when attempting connection, you get an error saying that the listener does not know of the database service, explicitly add the details of the database service to the Listener.

3) Don't forget to add a firewall rule (for the internal firewall only -- if you are using VPN).

SQLPlus Command-Line Syntax for Connection

Sun, 23 Dec 2018 15:24:41 GMT

sqlplus user/password@(description=(address_list=(address=.......ODS)))

will work (use quotes if in Unix else the () are interpreted by the shell)

that url-like syntax is supported by (much) later releases of sqlplus.

Or you can use the EZconnect syntax:

sqlplus user/password@//hostname/service_name

sqlplus user/password@//hostname:port/service_name

Oracle Database Change Port

Sat, 22 Dec 2018 18:02:04 GMT

https://help.blackboard.com/Learn/Administrator/Hosting/Databases/Database_Ports_Oracle

http://sumations.net/i/doc/XEDBA/network005.htm

Changing Oracle Ports

Sat, 22 Dec 2018 16:20:48 GMT

https://docs.oracle.com/cd/B19306_01/install.102/b15660/app_port.htm

Check Oracle TNS Listener Status

Sat, 22 Dec 2018 13:06:47 GMT

lsnrctl status

Check Oracle Console Errors (dbconsole)

Sat, 22 Dec 2018 10:34:10 GMT

emctl status dbconsole