Clik here to view.
Oracle: Standard Edition 2 available with 23.26.3.?
When downloading Release Update 23.26.3., I could see this: As you can see in the Product info it also has “Oracle Server – Standard Edition”. However, I haven’t found anything official yet. I tried...
View ArticleOracle: Failed to create Cloud Base DB Service DB-System with RU 19.32.
Issue I recently had to create a 19c Oracle Database on the Base Database Service on Oracle@Azure. Creating the DB-System failed with the following error: Launch DbSystem failed. Reason :...
View ArticleTemporary tablespace and ODA 19.31.
I recently patched Oracle Database Appliances (ODAs) to 19.31. For DBs with more than 1 tempfile in the temporary tablespace I got an error during the “odacli update-dbhome” : # odacli describe-job -i...
View ArticleOracle: A possible method to address a slow query if there is time pressure
Sometimes there is no time for a long analysis of a slow query and a fix (workaround) has to be provided asap. In such cases it often helps to check if a query did run faster with a previous...
View Articleodacli create-appliance failed on an ODA HA
I recently had to install an Oracle Database Appliance X11 HA and it failed when creating the appliance: [root@oak0 ~]# odacli create-appliance -r /u01/patch/my_new_oda.json ... [root@mynewoda ~]#...
View ArticleMigrating an Oracle database to another server
There are several situations when you have to migrate your Oracle databases to a new server. This could be due to hardware lifecycle reasons for on-prem systems or you need to upgrade your Operating...
View ArticleClik here to view.
Oracle Database on Apple Silicon with Virtualbox 7.1
I blogged in the past about running an Oracle database for testing purposes on Apple Silicon. Initially with emulated Intel code here and then (when Oracle released its 19c database software for ARM)...
View ArticleClik here to view.
What is the fastest method to connect to an Oracle database?
There are still applications around, which do connect to the database, do some stuff and then disconnect again. I.e. for each and every operation a logon to the database is necessary. This produces...
View ArticleOracle Database Appliance (ODA): Some listeners do not start anymore when...
A colleague of mine had the issue some time ago and I recently experienced the same behaviour at a customer’s ODA: A couple of Listeners did not start when booting. Starting them as user grid with...
View ArticleClik here to view.
Running an Oracle Database 19c on Apple Silicon (Apple Macbook Air M1)
By end of June 2023 Oracle announced the availability of Oracle 19c for the Arm-architecture (aarch64). Consultants and DBAs, who do use a Mac Laptop with Apple Silicon (M1 or M2), have waited quite a...
View ArticleClik here to view.
Building a transportable Oracle Sandbox environment for an Apple Silicon...
Since Apple released their Apple Silicon Laptops based on the ARM processor architecture, it became difficult for Consultants with such a device to run their Oracle Sandbox environment, because the...
View ArticleClik here to view.
Installing Oracle 23c Free developer release on Proxmox
Oracle provides an OVA (Open Virtual Appliance) file to install the 23c Free Developer Release on Virtualbox. An OVA file contains metadata and file elements in the Open Virtual Format (OVF) to...
View ArticlePatching ODA to 19.18.: Error in sshd_config
I recently patched an Oracle Database Appliance (ODA) from 19.16. to 19.18. Detailed steps on how to patch to 19.18. are available here. During the update-server step I got the following error: #...
View ArticleOracle: Is it possible to setup a system that a client (specific IP address)...
Problem description In a recent consulting assignment I got the following task: A server with a specific IP address (Application server or Oracle Client) should be able to connect to a specific...
View ArticleConsiderations when backing up from the Oracle Standby Database (Data Guard)...
To reduce load on the Primary DB in a Data Guard configuration you may decide to do your rman backups from the Standby site. A very common approach today is to use NFS as the backup location,...
View ArticleClik here to view.
VirtualBox on Mac Host: High CPU utilization for idle VM
Many people in the IT industry do use VirtualBox as a Type-2 Hypervisor to test software in virtual machines. I’m using it with Vagrant on my Macbook Pro 2019 (Intel with Ventura 13.2. when writing...
View ArticleLatency test from Client to Oracle DB: Minimum number of rows fetched in...
Some time ago I wrote a Blog on how to calculate the network latency fetching a row to a Client from an Oracle database. The tool I used was sqlcl, because it just requires Java and hence no Oracle...
View ArticleClik here to view.
Running Intel x86-64 VMs with an Oracle DB on Apple Silicon (ARM)
For testing purposes many IT-people traditionally use Virtual Machines (VMs) on their Laptops (often on Oracle Virtualbox). Since Apple moved to its own processor type (Apple Silicon, i.e. ARM...
View ArticleClik here to view.
datapatch fails when running against an Oracle Container Database because of...
When going to 19.15. a customer hit this error when running datapatch: Unsupported named object type for bind parameter at /u01/app/oracle/product/19.0.0.0/dbhome1915/sqlpatch/sqlpatch.pm line 5849,...
View ArticleWhy do we still have HEIGHT BALANCED Histograms and how to get rid of them?
A customer, who is on 19c with his Oracle databases asked me recently why he still has Height Balanced Histograms in his database? E.g. SQL> select histogram, count(*) from dba_tab_columns where...
View Article
![[-100%] Commodity Intelligence – (Android Apps)](http://play-lh.googleusercontent.com/j67-qJvmnn4xnVlYVZ9ZhtZUJIgwjKekJGoKQT6D1KHcWGZxtQaFroummEvwV17na7tyh1pGbbeWCRdWtTKqeg=w950-h950)
