PDB_OS_CREDENTIAL and external jobs
After introduction of Multitenant option, Oracle provided additional ways to ensure proper isolation between pluggable databases. PDB_OS_CREDENTIAL initialization parameter is part of them. It allows to use specified operating system user while interacting with operating system from a PDB. According to documentation, it is taken…
How to generate DDLs of existing lockdown profiles
In my last blog post I mentioned that I’ll write a new one on how to generate DDLs to recreate existing lockdown profiles – the time has come :). When I had to do it for the first time, I thought it would be as…
Behind the Scenes: Preparing a Live Demo
One of the extensions in Oracle 20c is the possiblity to use the In-Memory Database option for Partitioned External Tables and Hybrid Partitioned Tables. In my opinion, this opens up many possibilities to perform efficient ad-hoc queries on Data Lakes. That’s why I prepared a…
Lockdown profiles definition – NUL character
Playing more with lockdown profiles, I have discovered another interesting bit. For some entries and some columns of CDB/DBA_LOCKDOWN_PROFILES views (which are based on LOCKDOWN_PROF$ table), there is unnecessary NUL (ASCII code 0) character added at the end. In our environment it was the case…
Lockdown profiles definition inconsistencies
While working recently on lockdown profiles in 12.2 database with January 2020 Release Update installed, together with my colleague Loïc Fave, we have discovered some inconsistencies in how the information about already defined lockdown profiles is stored and used to enforce the rules. Loïc has…
Formatter Callback Functions
Introduction In this blog post I explained how the formatter in SQL Developer works and outlined how you can change the formatter result using Arbori and JavaScript. In this post I explain what exactly the provided formatter callback functions do. For that I use simple…
Patching SQL Developer 20.2 with SQLcl’s Formatter
Introduction SQLcl 20.3.0 was released on October 29, 2020. It’s the first time I remember that we have a SQLcl version without the corresponding SQL Developer version. This is a pity because this SQLcl version also contains formatter fixes. And formatting code is something I…
Navigation in Large PL/SQL Code
Are you editing large PL/SQL code in SQL Developer? Have you noticed that sometimes you cannot navigate to a declaration anymore? No Ctrl-Click under Windows. No Command-Click under macOS. In this blog post I explain the reason and how to fix that in SQL Developer…
‘ORA-19909: datafile 1 belongs to an orphan incarnation’ during duplicate for standby
Some time ago my colleague Pavel Tolstorukov asked me for help with failing DUPLICATE TARGET DATABASE FOR STANDBY FROM ACTIVE DATABASE. The problem appeared during the recovery phase. The exact error looked like below: We worked on this together and were able to identify the…
Data Guard – Definition of Online Redo Logs is “broken” after duplicate for standby
Hi there, today is the 1st birthday of a service request with Oracle I opened for which I see no progress since quite a while. I raised it exactly one year ago, on Oct 2nd 2019. There were some activity in last October, November mostly…
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