Tag: oracle database

How to a recreate disk group used by CRS

I will go through detailed steps here on how to recreate a disk group used by CRS. Some things to bear in mind: – I created this cluster based on another existing cluster, so I just followed the same patterns…

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Troubleshooting an enterprise user security database login and sudden ORA-12154

I encountered a new problem last week while trying to log in into LDAP-enabled Oracle Database (Enterprise User Security). I entered my SQL*Plus credentials that usually work fine, but received an error ending with ORA-12154. $ sqlplus aprokopjevs@EBSPROD SQL*Plus: Release…

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How to run DBSAT against Oracle RDS database

The scope of this article is to show how to run DBSAT (Oracle Database Security Assessment Tool) against an Amazon RDS Oracle instance. This is based on a real-life execution. The DBSAT version used was 2.0.2 over an RDS database…

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Using Docker to provide self-service database patching

I’ve been looking into how Vagrant and/or Docker can be used to improve the life of DBAs and maybe others, too. I did this mostly to practice using these tools – especially Docker – that are becoming more and more important…

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Getting started with Oracle Database Backup Service in 2018

A few years ago I wrote an article on getting started with the Oracle Database Backup Service which can be found here. It’s no surprise that in the last few years things have changed significantly.  Trying to use this service…

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How to fix an AWR Warehouse after credentials change

We had an AWR Warehouse (AWRW) installation (OEM 12.1.0.5 on Linux) collecting data from +50 databases for a few months. A few days ago we tried to connect and found it was not working, with the AWRW console showing an…

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Oracle Database 12c: PSUs vs database proactive bundle patches

Simon Pane, Pythian Database Consultant, compares PSUs and Database Proactive Bundle Patches in Oracle 12c.

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Handling the Leap Second – Linux

Last week I published a blog post titled “Are You Ready For the Leap Second?“, and by looking at the blog statistics I could tell that many of you read it, and that’s good, because you became aware of the…

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Are you ready for the Leap Second?

If you’re not aware of what the leap second is look into it. The fact is, this year the last minute of June 30th will be one second longer and “June 30, 2015 23:59:60” will be a valid and correct time….

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The power of the Oracle Database Proxy authenticated connections

We recently received this inquiry from a client: “Can an Oracle database account support two passwords at once so we can roll out updated credentials to application servers gradually rather than having to change them all at the same time?…

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