OTN Appreciation Day: The Recyclebin

Tim Hall has initiated in his blog the OTN Appreciation Day, this is my contribution to this nice idea. My favorite database feature is not rocket since, not high available, it is very basic. It is the recyclebin. Since seven years I am working as teacher for Oracle architecture trainings for my company where new DBAs can learn the basics of an Oracle RDBMS. In this training, the participants have very different knowledge about a database. Some are working for…

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Enterprise Manager 13c – How to apply Patch 22505404: WLS PATCH SET UPDATE 12.1.3.0.160419

Since the 19th of April there is a new patch set available for Weblogic servers – Patch 22505404: WLS PATCH SET UPDATE 12.1.3.0.160419. This patchset has included 116 fixes and is a generic one. The patch is listed in the Enterprise Manager 13c as recommended. OPatch has no to be updated. This patch is not an online patch, you have to shut down your running EM13c server. This blog post describes the apply of the Weblogic patch set update in…

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Houston – we have deleted all SYS DBMS_SCHEDULER Jobs !

Bad, bad PL/SQL…. A customer of me has executed a simple script to cleanup DBMS_SCHEDULER jobs and programs for an application. Unfortunately he did as user SYS. The content of the SQL script: BEGIN FOR JOB IN (SELECT * FROM USER_SCHEDULER_JOBS) LOOP DBMS_SCHEDULER.DROP_JOB(JOB_NAME => JOB.JOB_NAME, FORCE => TRUE); END LOOP; FOR PROG in (select * from USER_SCHEDULER_PROGRAMS) LOOP DBMS_SCHEDULER.DROP_PROGRAM(PROGRAM_NAME => PROG.PROGRAM_NAME, FORCE => TRUE); END LOOP; END; / All the Oracle internal maintenance jobs and programs like the AUTO_SPACE_ADVISOR_PROG, GATHER_STATS_PROG,…

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Enterprise Manager 13c – Disable the BI Publisher

The BI Publisher will be started automatically during the startup process of the Enterprise Manager 13c. You don’t like the BI Publisher or you don’t use it? Save the resources, speed up your startup process, disable it. The password of the database repository owner SYSMAN is required. Verify the Status – the BI Publisher is up and running [oracle@solothurn ~]$ export OMS_HOME=/u00/app/oracle/product/oms13cr1 [oracle@solothurn ~]$ $OMS_HOME/bin/emctl status oms Oracle Enterprise Manager Cloud Control 13c Release 1 Copyright (c) 1996, 2015 Oracle…

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Oracle Enterprise Manager 13c – KILL SESSION for Application Administrators – Part 1

Basically to execute a ALTER SYSTEM KILL SESSION command you have to be a) a DBA or b) you need the ALTER SYSTEM privilege. Granting the ALTER SYSTEM privilege to a Non-DBA has big risks. This user is now able to change a lot of parameters like memory parameters, NLS settings etc. In one of my projects, a small team of well known application administrators is having a read-only account in Enterprise Manager 12c to verify the performance, see the user sessions…

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