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Oracle

Franck Pachot

Oracle Rolling Invalidate Window Exceeded(3)

By | Oracle | No Comments

By Franck Pachot . This extends a previous post (Rolling Invalidate Window Exceeded) where, in summary, the ideas were: When you gather statistics, you want the new executions to take into account the new statistics, which means that the old execution plans (child cursors) should be invalidated You don’t want all child cursors to be immediately invalidated, to avoid an hard parse storm, and this is why this invalidation is rolling: a 5 hour window…

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Mouhamadou Diaw

Oracle 21c : Two nodes Grid Infrastructure Installation

By | Database Administration & Monitoring, Database management, Oracle | 2 Comments

Oracle 21c is actually released in the cloud, and I did some tests to setup a Grid infrastructure cluster with two nodes. I used following two VM servers to test racp1vm1 racp1vm2 Below the addresses I am using. Note that a dns server is setup 192.168.0.101 racp1vm1.dbi.lab racp1vm1 –public network 192.168.0.103 racp1vm2.dbi.lab racp1vm2 –public network 192.168.0.102 racp1vm1-vip.dbi.lab racp1vm1-vip –vitual network 192.168.0.104 racp1vm2-vip.dbi.lab racp1vm2-vip –virtual network 10.1.1.1 racp1vm1-priv.dbi.lab racp1vm1-priv –private network 10.1.1.2 racp1vm2-priv.dbi.lab racp1vm2-priv –private network…

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Clemens Bleile

Oracle autoupgrade on Windows and plugin to a Container DB with virtual accounts

By | Oracle | No Comments

In a project I recently had to upgrade an Oracle 12.2.-DB to 19.9. and at the same time migrate from the non-container architecture to the container architecture. The interesting part here is to do this on Windows. Actually both steps (upgrade and plugin) are possible using the autoupgrade tool , which is the preferred tool to do Oracle upgrades today. Before doing the upgrade at the customer, I performed 2 tests in my personal environment:…

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Franck Pachot

Learn ODA on Oracle Cloud

By | Oracle | No Comments

By Franck Pachot . You want to learn and practice your ODA command line and GUI without having an ODA at home? It should be possible to run the ODA image on VirtualBox but that’s probably a hard work as it is tied to the hardware. About the configuration, you can run the Oracle Appliance Manager Configurator on your laptop but I think it is not compatible with the latest odacli. However, for a long…

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Franck Pachot

19c serverless logon trigger

By | Oracle | No Comments

By Franck Pachot . I thought I already blogged about this but can’t find it. So here it is, with a funny title. I like to rename oracle features by their user point of view (they are usually named from the oracle development point of view). This is about setting session parameters for Oracle connections, directly from the connection string, especially when it cannot be set in the application (code) or in the DB server…

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Jérôme Dubar

How long does it take to redeploy an ODA X8-2M?

By | Database Administration & Monitoring, Database management, Hardware & Storage, Operation systems, Oracle | No Comments

Introduction One of the advantage of Oracle Database Appliance is its fast deployment. Most often, the initial setup of a lite ODA (with a reimaging) only takes half a day, from unboxing until a first test database is available. Trust me, it’s hard to do better. For some reason, for example if you need to patch to the latest release and you have some intermediate patch to apply before, or if you plan to change…

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Christian Weinfurtner

Oracle 21c: Blockchain Tables

By | Database Administration & Monitoring, Database management, Entreprise content management, Oracle | No Comments

Oracle Blockchain Tables With Oracle Database 20c/21c the new feature Oracle Blockchain Tables has been introduced. Blockchain Tables enable Oracle Database users to create tamper-resistant data management without distributing a ledger across multiple parties. Database security can be improved by using Blockchain Tables to avoid user fraud and administrator fraud as well. One of the main characteristics of Oracle Blockchain Tables is that you can only append data. Table rows are chained using a cryptographic…

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Clemens Bleile

Handling unified auditing spillover files on the standby-site

By | Oracle | No Comments

Switching to Oracle Unified Auditing may produce lots of data when e.g. auditing activities of the SYS-user. I.e. according the documentation you can do the following to audit similarly as in traditional auditing with audit_sys_operations=TRUE: SQL> CREATE AUDIT POLICY TOPLEVEL_ACTIONS ACTIONS ALL ONLY TOPLEVEL; SQL> AUDIT POLICY TOPLEVEL_ACTIONS BY SYS; REMARK1: You may check the Blog on traditional SYS-auditing here REMARK2: Tests done in this Blog were done with Oracle 19.9. Auditing toplevel operations were…

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Frank Bléger

How to quickly download the new bunch of 21c Oracle Database documentation?

By | Database Administration & Monitoring, Database management, Oracle | No Comments

Last month, Oracle released its new 21c version of the database documentation. At that time, I was looking for a quick mean to get all the books of this so-called 21c Innovation Release. I could remember I used a script to get them all in one run. Quick look at google, remembered me I used the one from Christian Antognini which hasn’t been refreshed for a while. In this blog, I will provide you the…

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