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Author's profile photo Pratap Naidu

Oracle 19c database upgrade of SAP system

Hello,

I am writing this blog, to describe the steps how you upgrade the Oracle database of your SAP system to Oracle Database 19c

 

Preparations

  • Supported upgrade path to 19c?
    To upgrade your database directly to Oracle Database 19c, your source database release must be Oracle 11.2.0.4, Oracle 12.1.0.2 or Oracle 12.2.0.1.

from 12.1.0.1, 11.2.0.3, 11.2.0.2, 11.2.0.1, 11.1, 10.2 or earlier – Direct upgrade is not supported.

Installation of oracle 19c database software

First backup the oracle inventory

 

  1. Log on as Oracle software owner, for eg: oracle or ora<sid>
  2. Install the new Oracle database software into the <ORACLE_HOME_NEW>, for eg: /oracle/SID/19.0.0
  • Set environment variables DISPLAY and DB_SID,
  • then start RUNINSTALLER. For RUNINSTALLER options, check SAP Note 2660017.
    OS> setenv DB_SID <DB_SID>
    OS> setenv DISPLAY <DISPLAY>
    OS> ./RUNINSTALLER

https://help.sap.com/viewer/08baebca0fef470389e4a4ebcb46b879/CURRENT_VERSION/en-US/68ef72fdd9314bd2b9964652bb279f31.html

oracle base usually be : /oracle/SID

Now we will have to apply SAP Bundle Patch to new installed software oracle 19.0.0

(make sure you have downloaded these 3 files from service market place)

First extract SAP19P_XXX.ZIP file and copy Mopatch folder to new oracle home location (/oracle/SID/19.0.0/)

Second update the Opatch:

extract the OPATCH19P_XXX.ZIP file to oracle home (/oracle/SID/19.0.0/)

then Fianlly apply SBP using mopatch

 

 

Oracle 19c database upgrade

  • Run the pre-upgrade scripts
  • Please take backup of the listener configuration files

Login with ora<sid> with 11.2.0.4 oracle home

set the env variables

stop  SAP system

Check oratab entries

start DBUA

 

Post upgrade steps

After the Oracle database upgrade, you need to perform the steps described here.
1. Check oratab entries
2. Check the symbolic link for the runtime Oracle home.
3. Adapt the environment of the <sapsid>adm user (eg: oracle home, client)
4. Update the SQL*Net configuration files
5. Stop the old version listener and start the database listener of 19c
6. Start the database instance (make sure oracle home is pointing to right oracle home)
7. check the database parameters for 19c and implement recommended parameters from sap note 2470718 – Oracle Database Parameter 12.2 / 18c / 19c
8. Update the Oracle Instant Client if required
9. Update BR*Tools executables
10. Update Database Statistics
11. Backup the database
12. R3trans -d, make sure it returns 0000

Finally Start the SAP system

Assigned tags

      15 Comments
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      Author's profile photo Janos Mucsi-Besze
      Janos Mucsi-Besze

      Hi.

       

      Nice Blog.

      A small update regarding the SBP installation from me. If you stricktly follow the README of the SBP and the official SAP guides/notes there is no need to set ORACLE_HOME(s) additionally and you can install the SBP with one single command (in case of single instance).

      Author's profile photo Shibaram Nayak
      Shibaram Nayak

      Dear Pratap,

      Thanks, we have seen your post on blog. which is very nice. we are also trying to upgrade Oracle 12.2.0.1 to 19.0.0.1.we followed all your steps. but now when we start dbua upgrading from oracle user getting an error, which is attached in here

      db-12-19.png

      error- " [DBT-20017] The database PRD is not in a READ/WRITE open mode."

       

      dbua%20error

      As per some solutions we try to make DB in Read-Write mode but db is already in Read-Write mode also Opened

      OS - Release version as below.

      Operating System: SUSE Linux Enterprise Server 12 SP1

      Please Help us.

      Thanks & Regards,

      Shibaram Nayak./ Kuldeep Patil.

      dbua error

      Author's profile photo Maxim Yaromich
      Maxim Yaromich

      Hello Shibaram,

      Have you overcome this error?

      Could you describe your path, we have the same probem right now ?

      Thank you

      UPDATED:

      Guys, we resolved it.

      What helped us is ORACLE_HOME linked to old home without link in its path (e.g. /oracle/SID/11204 but not /oracle/SID/112_64), also oratab string should contain the same path.

      We restarted DB then, and proceed with dbua successfully.

      good luck!

      Author's profile photo Pratap Naidu
      Pratap Naidu
      Blog Post Author

      Hello Shibaram,

      Did you able to solve the above issue? if not please check if below points helpful

      1.Please check oratab file and make sure it has source database entry
      2. How did database is started as of now? please start the database with oracle database owner (orasid or oracle)
      3.Start the DBUA with oracle database owner (orasid or oracle) with all environment variables set

       

      Regards

      Pratap

      Author's profile photo Vivekanand Narsingh Pandey
      Vivekanand Narsingh Pandey

      Hi Pratap,

       

      Thanks for sharing such a great blog on 19c Upgrade, descriptive and detailed one.

      Wondering if have you come across Migration of Oracle from HPUX to Oracle Linux  (OS Change migration).

      I would be great if you can share, this blog help me to upgrade my Oracle from 18c to 19c

       

      Regards,

      Vivekanand Pandey

      Author's profile photo Pedro Ruiz
      Pedro Ruiz

      Hi Vivekanand Narsingh,

       

      If you are planning to perform a migration that involves a change in the Operating system, you should consider using the heterogeneous system copy approach using the Software Provisioning Manager, check our SAP Notes 1738258 or 2568783, to verify what is the most suitable scenario for you.

       

      With regards to the Oracle upgrade from 18c to 19c, check the detailed instructions included in the following URL:

       

      https://help.sap.com/doc/2570419c44414d1e9d83732636ed95e2/19c/en-US/Upgr_Ora_UX_Guide_19c.pdf

       

      Our general SAP Note with access to SAP Guides for Oracle Upgrade is also available in the SAP Note 2540847.

       

      Regards,

      Pedro Ruiz

      Author's profile photo N Ramesh
      N Ramesh

      Hi Pratap,

       

      we are planning for a heterogeneous system copy in our landscape.  parallely we need to upgrade oracle 12 to 19c also. and our SAP is non-unicode. Does oracle 19c supports Non-unicode. Please let me know.

       

      Thanks

      Ramesh

      Author's profile photo Pratap Naidu
      Pratap Naidu

      Hi Ramesh,

      according to these SAP notes, 19c should ideally support non UC systems

       

      2799900 - Central Technical Note for Oracle Database 19c
      In general, the following SAP versions are supported with Oracle Database 19c:
      SAP NetWeaver 7.X
      SAP Kernel 7.21_EXT or higher
      For detailed information, see SAP Note 2817074 and SAP Product Availability Matrix (PAM).
      2817074 - Oracle Database 19c: Integration in SAP environment
      As of now the following SAP products (incl. all corresponding EHPs) are supported with Oracle Database 19c:

      - SAP NetWeaver 7.0X (AS ABAP only)/ 7.1/7.3/7.40/7.5x

      - SAP BW 7.10/7.11/7.20/7.30/7.31/7.40/7.50

      - SAP ERP 6.0

      - SAP CRM 7.0

      - SAP SCM 7.0

      - SAP SRM 7.0

      - SAP Solution Manager 7.2

      - Banking Services from SAP 6.0/7.0/8.0/9.0

      - SAP NW CE 7.1/7.20

      - SAP NW PI 7.1

      Even if you choose non UC kernel in PAM, it's showing as compatible with 19c

      Regards
      Pratap

       

       

       

      Author's profile photo Dinesh Kumar
      Dinesh Kumar

      Hello Pratap,

      Thanks for the details step of 19c upgrade it is very useful. I need a help and suggestion, I am at dbua post upgrade phase now unfortunately my dbua session got closed and lost VNC connection as well. Now I am trying to start the dbua it is starting from beaning again. Can you please help me with the start option from where it got stopped in unix OS.

      Thanks and Regards

      Hafeez

       

       

       

       

      Author's profile photo Daniele Chiarini Brandazza
      Daniele Chiarini Brandazza

      Hi Pratap Naidu,

       

      can you please explain if is it possible to upgrade to 19c from a Oracle 11.2.04 Version that has NOT been patched with the latest Opatch, SBP – SAP Bundle patch ?

       

      Kind regards,

      Tommaso

      Author's profile photo Pratap Naidu
      Pratap Naidu
      Blog Post Author

      Hello Tommaso,

      As long as your source database release is  11.2.0.4 version, DBUA allow you to upgrade to 19c version. SAP didn't give any information about minimum patch on source database.

      But it is always good to apply SBP before 19c upgrade,if you have old SBP.

      Please check sap note 2800001 and for os requirements.

      2478541

      Regards

      Pratap

      Author's profile photo Eswar Kumar
      Eswar Kumar

      well explained. Thnx for sharing 🙂

      Author's profile photo Denys Davies
      Denys Davies

      Oracle 19c is not supported with SDI data mining and log based logic replication

      Author's profile photo Matias Choulet
      Matias Choulet

      Recommendations, you should do stress tests. After migrating from 12 to 19 we have serious performance problems.
      That we still haven't solved.

      Author's profile photo Pratap Naidu
      Pratap Naidu
      Blog Post Author

      Hi Matias,

      Please check this SAP note and see if it helps

      1817553 - Checklist for performance problems in SAP Oracle Databases

       

      Regards

      Pratap