Oracle Database 12.2.0.1

Oracle 12.2.0.1 – Clarification for Limited Error Correction Support

Posted on June 3, 2020 by Mike.Dietrich Release Schedule 4

A few weeks ago, you read the announcement of the availability of Limited Error Correction Support for Oracle Database 12.2.0.1. But many of you had some questions right away. I could answer most of them easily. But it was clear to us that there was more information needed. Hence, we published more information for Oracle 12.2.0.1 – Clarification for Limited Error Correction Support.

Oracle 12.2.0.1 - Clarification for Limited Error Correction Support

Photo by Alfred Aloushy on Unsplash

What has been announced in April 2020?

Just a few weeks ago we announced the availability of Limited Error Correction Support for Oracle 12.2.0.1 after November 2020. You could find …

September 2017 releases of preupgrade.jar and preupgrd.sql are available

Posted on September 11, 2017 by Mike.Dietrich Upgrade / Migration 7

On a regular basis the Database Upgrade Team releases new and improved versions of the preupgrade tools via a MyOracle Support note. And it’s time again: the September 2017 releases of preupgrade.jar and preupgrd.sql are available for download.

September 2017 releases of preupgrade.jar and preupgrd.sql are available

Please ALWAYS download the most recent versions of preupgrade.jar for upgrades to Oracle Database 12.2 and preupgrd.sql (including utluppkg.sql) for Oracle Database 12.1.0.2 upgrade from MOS Note: 884522.1. The version you’ll download is way newer than the version you’ll get with the base installation.

preupgrade.jar – Rel.7 – September 2017

Please …

Fallback Strategy: Flashback Pluggable Database

Posted on August 30, 2017 by Mike.Dietrich Fallback Single-/Multitenant 7

Since Oracle Database 12.2 an important feature works now for pluggable databases as a Fallback Strategy: Flashback Pluggable Database in Oracle 12.2. This was missing in Oracle Database 12.1.

Actually I missed this feature a lot as I use “Flashback” almost everyday. And you could only rewind the entire deployment with a FLASHBACK DATABASE command.

Fallback Strategy: Flashback Pluggable Database

Fallback Strategy: Flashback Pluggable Database in Oracle 12.2 Actually having the possibility to flashback a pluggable database without effecting the other PDBs is really important. Did you ever want to try out what happens if you TRUNCATE TABLE SYS.PROPS$? Give it a try – but set a …

Oracle GoldenGate 12.3 is supported for Oracle Database 12.2.0.1

Posted on August 23, 2017 by Mike.Dietrich GoldenGate 14

Finally … it took a little while but now Oracle GoldenGate 12.3 is supported for Oracle Database 12.2.0.1.

Never heard of Oracle GoldeGate? Then you may look either into our slide deck and see the customer case of Amadeus. Or you may read further on OTN: http://www.oracle.com/technetwork/middleware/goldengate/overview/index.html

Oracle GoldenGate 12.3 is supported for Oracle Database 12.2.0.1

Roy and I received this question quite often in the past months:
When will Oracle GoldenGate be certified for use with Oracle Database 12.2.0.1?

I just learned about it today via the blog post of my friend YV RaviKumar who wrote about it…

Oracle Optimizer Statistics Advisor in Oracle Database 12.2.0.1

Posted on August 22, 2017 by Mike.Dietrich Statistics 32

The Oracle Optimizer Statistics Advisor in Oracle Database 12.2.0.1 is something I planned to write about for quite a while. Roy and I include this topic in the New Features section in our Upgrade / Migrate / Consolidate to Oracle Database 12.2 slide deck for some time. This blog post (in German only) by my former team mate Ulrike Schwinn inspired me to post something by myself.

Oracle Optimizer Statistics Advisor in Oracle Database 12.2.0.1

First of all you’ll find the feature documented in the Oracle Database 12.2 Database SQL Tuning Guide.

The advisor task (‘Statistics Advisor‘) …

ORA-44787 – Don’t mess with the Default Oracle Service

Posted on August 16, 2017 by Mike.Dietrich Behavior Change Single-/Multitenant 13

ORA-44787 - Don't mess with the Default Oracle Service At the moment I work with one of our reference customers, Swiss Mobiliar Insurance, on their Multitenant upgrade to Oracle Database 12.2.0.1. And we encountered an “interesting” issue. After upgrade we received an ORA-44787 making it impossible to switch between containers with “alter session set container=pdb1;” commands. Lesson learned now: If you don’t want ORA-44787 – Don’t mess with the Default Oracle Service.

What has happened?

Very simple case. We approach a database upgrade with a Multitenant deployment of over 90 PDBs. Source database version is Oracle Database 12.1.0.2.BP170117, destination version is Oracle Database 12.2.0.1.RU170718. …

Oracle Label Security (OLS) Clean Up in Oracle Database 11.2-19c

Posted on July 29, 2017 by Mike.Dietrich Removal 22

Oracle Label Security (OLS) clean up in Oracle Database 11.2-19c is almost as simple and straight forward as removing OWM or APEX. You can do it online without downtime. But in older releases a relink operation did cause downtime. Oracle Label Security is an extra cost option. More information is available on oracle.com.

Oracle Label Security (OLS) Clean Up in Oracle Database 11.2-19c

Oracle Label Security (OLS) Clean Up in Oracle Database 11.2-12.2 Oracle Label Security is dependent on Oracle Database Vault (DV). In case DV is present you must remove it first if you plan to remove Oracle Label Security.

Before you start removing anything from …

Oracle APEX (Application Express) Clean Up in Oracle Database 11.2-12.2

Posted on July 27, 2017 by Mike.Dietrich APEX Removal 17

Oracle APEX (Application Express) clean up in Oracle Database 11.2-12.2 is fairly simple and straight forward. With the upgrade to Oracle Database 12.2.0.1 Oracle APEX does not get upgraded automatically anymore. If necessary you should upgrade Oracle APEX upfront of afterwards. But please do keep an eye on the APEX certification with Oracle Database 12.2.0.1 to avoid any issues:

Oracle APEX (Application Express) Clean Up in Oracle Database 11.2-12.2

Before you start removing anything from your database please …

Remove and Clean Up Components from Oracle Database 11.2 – 19c

Posted on July 26, 2017 by Mike.Dietrich Removal 28

Remove and Clean Up Components - Oracle 11.2 - 12.2

I will start a series of blog posts on how to remove and clean up components from Oracle Database 11.2 – 19c.

Precaution

This series of blog posts is not meant to recommend the removal of any options from an Oracle Database. It is not meant to create any sort of negativeness on any of the components or options. It’s is only meant to give you some advice and guideline in the case you’ll need to remove something.

The OUI (Oracle Universal Installer) installed everything on disk – and there’s a very good reason to do this. The purpose of …

More Information about RU and RUR patches for Oracle 12.2

Posted on July 19, 2017 by Mike.Dietrich Oracle Database 12.2.0.1 Patch Recommendation 5

More Information about RU and RUR patches for Oracle 12.2 The first RU (Release Update) for Oracle Database 12.2.0.1 has been released. And Oracle Support provides some very helpful documents to explain the implication of the new RU (Release Update) and RUR (Release Update Revision) patches.

More Information about RU and RUR patches for Oracle 12.2

First of all, these are the most important MOS notes to have a look at:

Alert.log: New timestamp format in Oracle 12.2

Posted on May 30, 2017 by Mike.Dietrich Behavior Change Oracle Database 12.2.0.1 5

Timestamp Format Change

There’s an interesting change in the alert.log since Oracle Database 12.2.0.1: The format of the timestamps has changed.

If you compare the timestamps in Oracle 12.1 vs Oracle 12.2 you’ll recognize the change immediately:

Oracle 12.1

Oracle 12.2

Wed Feb 08 15:39:29 2017
Database mounted in Exclusive Mode
Lost write protection disabled
Completed: ALTER DATABASE   MOUNT
Wed Feb 08 15:39:29 2017
ALTER DATABASE OPEN
Wed Feb 08 15:39:29 2017
Ping without log force is disabled.
Starting background process TMON

2017-05-29T14:09:17.064493+02:00
Database mounted in Exclusive Mode
Lost write protection disabled
Completed: ALTER DATABASE   MOUNT
2017-05-29T14:09:17.252853+02:00
ALTER DATABASE OPEN

Is “imp” still supported in Oracle Database 12.2?

Posted on May 24, 2017 by Mike.Dietrich Export - Import 2

exp imp

Good question we receive quite often:

Is “imp” still supported in Oracle Database 12.2?

For clarification: I don’t talk about “impdp” but about old “imp” (import). And yes, it is still supported in Oracle 12.2.

The old “exp” got desupported with Oracle Database 11.1.0.6 – but “imp” is still supported, even in Oracle Database 12.2.0.x. You should be able to import your old dumps into the newest release of the database and migrate even VERY old releases directly to Oracle Database 12.2.

Actually, the biggest step upwards we’ve heard about a year …

Issue with PDB Archives in Oracle 12.2.0.1 in ASM

Posted on May 22, 2017 by Mike.Dietrich Flaws and Pitfalls Single-/Multitenant 7

There is a fancy new command to unplug a PDB in Oracle Database 12.2.0.1:

ALTER PLUGGABLE DATABASE pdb1 UNPLUG INTO 'pdb1.pdb';

The nice thing with this command differing in the file ending of ‘pdb‘ instead of ‘xml‘ as you used it in Oracle 12.1 (and the ‘xml‘ option is still available of course): Instead of just creating an xml description file it zips everything together into a PDB archive.

SQL> show pdbs

    CON_ID CON_NAME			  OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
	 2 PDB$SEED			  READ ONLY  NO
SQL> create pluggable

Unified Auditing – is it ON or OFF in Oracle Database 12.2.0.1?

Posted on May 16, 2017 by Mike.Dietrich Auditing Oracle Database 12.2.0.1 9

Just a quick update to my blog post from September 2014:

Unified Auditing – is it ON or OFF in Oracle 12c?

Any changes in Oracle Database 12.2.0.1?

Yes. Significant changes happen to Unified Auditing in Oracle Database 12.2.0.1. Mostly internally as the mechanism used to dump the audit records in Oracle 12.1.0.x when Unified Auditing was on turned out to be very good for write performance, but not so good when you tried to read data. See my blog post from a few weeks ago how to deal with this performance implication and a potential patch:

Unified Auditing –

SGA_MIN_SIZE in Oracle Database 12.2

Posted on May 8, 2017 by Mike.Dietrich Parameters Single-/Multitenant 0

I did summarize all new init.ora/spfile parameters in Oracle Database 12.2.0.1 a while ago:

New SPFILE parameters in Oracle Database 12.2.0.1

And one caught Roy’s and my attention: SGA_MIN_SIZE.

When we present this new parameter as part of the Multitenant slides in our workshops, some people ask themselves:
“What happens if I oversubscribe such a parameter?” For example, if SGA_TARGET=4G and I have 10 PDBs and define in each of them SGA_MIN_SIZE=500M. Will the 9th and 10th PDB not startup anymore? Or will the 7th PDB already in trouble as the CDB$ROOT will need some SGA portion as …

PGA_AGGREGATE_LIMIT enforces default since Oracle Database 12.2.0.1

Posted on May 4, 2017 by Mike.Dietrich Behavior Change Oracle Database 12.2.0.1 Parameters 13

The init.ora/spfile parameter PGA_AGGREGATE_LIMIT got introduced in Oracle Database 12.1.0.1.

As per documentation in Oracle Database 12.1 it got defined as:

“PGA_AGGREGATE_LIMIT specifies a limit on the aggregate PGA memory consumed by the instance.“.

Furthermore the algorithm for its setting got described as:

“By default, PGA_AGGREGATE_LIMIT is set to the greater of 2 GB, 200% of PGA_AGGREGATE_TARGET, and 3 MB times the PROCESSES parameter. It will be set below 200% of PGA_AGGREGATE_TARGET if it is larger than 90% of the physical memory size minus the total SGA size, but not below 100% of PGA_AGGREGATE_TARGET.”

Default

Security change in Oracle Database 12.2 with login.sql

Posted on April 17, 2017 by Mike.Dietrich Behavior Change Oracle Database 12.2.0.1 Security 12

Sometimes there are tiny little changes in a new release – and sometimes they are not documented very well yet. One of these changes is the new behavior of login.sql for SQL*Plus in Oracle Database 12.2.0.1.

Behavior before Oracle Database 12.2

In all releases until Oracle Database 12.1.0.2 by default SQL*Plus searches for the user profile (login.sql) in your current directory first, and then in the directories you specify with the ORACLE_PATH environment variable.

Please be aware that this change can be introduced with a PSU or a BP from 2017 as well.

Behavior since Oracle Database 12.2

Since Oracle …

Download Oracle Database 12.1.0.2 or older versions from the Oracle Software Cloud

Posted on April 6, 2017 by Mike.Dietrich General 3

I did blog a few weeks back about the download of older versions of the Oracle Database as OTN offers you only the most recent ones.

In case you miss the downloads of Oracle Database 12.1.0.2 on OTN

Looked pretty simply, huh?

Well, here’s quick “how to” to access older Oracle Software downloads from eDelivery aka Oracle Software Cloud.

Login to https://edelivery.oracle.com/, the Oracle Software Cloud
Start typing “Oracle Database Enter” into the Search by field. It will display you the option below – mark it with a click:
Search Box in the Oracle Software Cloud
Then use

Install components in Multitenant ALWAYS with catcon.pl

Posted on March 2, 2017 by Mike.Dietrich Single-/Multitenant 11

I did blog several times about how to remove an unwanted component from a database. But yesterday I came across this interesting scenario worth a blog post.

Upfront information – 2026

Dear Reader,

this blog post is from 2017 when Multitenant was relatively new, and when not all tools were really comfortably aligned yet.

Nowadays, almost 10 years later, I typically use DBCA to add missing options to PDBs. Since I wrote this blog post in 2017, I actually did not use a manual method anymore. And I did not verify the procedures again due to time constraints.

My …

Release Dates Oracle Database 12.2.0.1 on-prem – Extended Support Waiving for Oracle 11.2.0.4 / 12.1.0.2

Posted on January 27, 2017 by Mike.Dietrich Lifetime Support Policy Oracle Database 12.2.0.1 27

Yesterday night the most important MOS Note:742060.1 got updated with the planned release date for Oracle Database 12.2.0.1 on-premises.

In addition, the dates for Waived Extended Support for Oracle Database 11.2.0.4 and 12.1.0.2 got extended as well.

Please see:

MOS Note: 742060.1: Release Schedule of Current Database Releases

In summary:

Oracle Database 12.2.0.1 for Exadata and SuperCluster is supposed to be released soon.
Oracle Database 12.2.0.1 for Intel Linux x86 and Solaris platforms (SPARC and Intel) is supposed to be released soon after the Exadata/SuperCluster releaseFOR EXACT DATES PLEASE SEE MOS Note: 742060.1.
The Free (Waived) Extended

Default Changes SPFILE Parameters – Oracle 12.2

Posted on January 18, 2017 by Mike.Dietrich Oracle Database 12.2.0.1 Parameters 9

This is the 4th posting in my series about init.ora/SPFILE parameters in Oracle Database 12.2.0.1.

Roy and I did a comparison between default parameter settings in Oracle Database 11.2.0.4 vs Oracle Database 12.1.0.2 vs Oracle Database 12.2.0.1. And some changes are quite interesting – of course the memory driven parameters are left out in this list.

Color RED marks a change between releases.
The databases were …

Having fun with PDB LOCKDOWN PROFILES

Posted on January 17, 2017 by Mike.Dietrich Single-/Multitenant 9

In Oracle Database 12.2 (available in the Oracle DBaaS Cloud) there’s a new functionality called “PDB LOCKDOWN PROFILES“. Actually the parameter came already in undocumented and not functional in Oracle Database 12.1.0.2 (see here).

PDB Lockdown Profiles

PDB Lockdown Profiles are meant as a granular way to restrict or enable access – mostly under the aspect of using the database in a highly shared environment but requiring security. The idea is to embed restrictions on-top of a grant, i.e. taking away certain things. As an example you could allow a user logged into a certain PDB …

UKOUG: SIG (RAC, Cloud, Database, …) – 12 Oct 2016

Posted on October 10, 2016 by Mike.Dietrich Workshop 0

Wow … time flies …

I think it was February or March this year when I’d got invited to the UKOUG SIG for RAC, Database, Cloud, Infrastructure in London on Oct 12, 2016. Just a week ago I looked into my calendar and realized: Book a flight. Now! We have to arrange travel at least 7 days before departure as otherwise extra approvals may be required. Time flies …

Oracle Database 12.2.0

The room number in the picture above was the one of my hotel room in Baku earlier this year in May 😉

And of course on Wednesday I will talk about …

Oracle 12.2: OJVM will no longer support compilation of SQLJ source – and JPub does not get shipped anymore

Posted on December 22, 2015 by Mike.Dietrich Behavior Change JVM Oracle Database 12.2.0.1 11

In Oracle Database 12.2.0.1, OJVM will no longer support the compilation of SQLJ source or executing SQLJ classes.

SQLJ on the client side will continue to be developed, shipped and supported. Only the part inside the DB is affected. Existing SQLJ code that runs inside the DB will need to be re-coded to use generic JDBC.

Furthermore JPubublisher (client-side and inside-DB) will not get shipped anymore with Oracle Database 12.2. It got removed from the RDBMS code. There is no replacement.

See here:

https://docs.oracle.com/en/database/oracle/oracle-database/12.2/upgrd/desupported-features-oracle-database-12c-r2.html#GUID-12BE00C5-D043-43DE-BCE0-2D3BD400AE29

–Mike…

OOW 2015 – Upgrade and Migrate to Oracle 12c Talk – Live and Uncensored – Get the Slides

Posted on October 27, 2015 by Mike.Dietrich OOW 2

Thank You, Thank You, Thank You!!!

Roy and I were extremely happy yesterday as the room was full. Totally sold out. I’ve read on Twitter that some people wanted to go in and weren’t allowed to join as the room capacity was reached.

If you want to get the few slides for our first talk:

Upgrade and Migrate to Oracle Database 12c:
Live and Uncensored! [CON6777]
then please find them here:
Slides
But I’d recommend you the get the full picture as we did mostly a live demo – and the demo is not in the slides:
Upgrade, Migrate &

Oracle Database 12.2.0.1

What has been announced in April 2020?

September 2017 releases of preupgrade.jar and preupgrd.sql are available

preupgrade.jar – Rel.7 – September 2017

Fallback Strategy: Flashback Pluggable Database

Oracle GoldenGate 12.3 is supported for Oracle Database 12.2.0.1

Oracle Optimizer Statistics Advisor in Oracle Database 12.2.0.1

What has happened?

Oracle Label Security (OLS) Clean Up in Oracle Database 11.2-19c

Oracle APEX (Application Express) Clean Up in Oracle Database 11.2-12.2

Precaution

More Information about RU and RUR patches for Oracle 12.2

Timestamp Format Change

Is “imp” still supported in Oracle Database 12.2?

Any changes in Oracle Database 12.2.0.1?

Default

Behavior before Oracle Database 12.2

Behavior since Oracle Database 12.2

Upfront information – 2026

PDB Lockdown Profiles

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