How to drop a database using DBCA in silence mode
I have a 19c database which I would like to drop it using DBCA utility. If we cannot use GUI, we have this command instead: Let’s see how it goes on my side: Looks good 🙂
DBCA cannot Delete Existing Database with DBT-10201
This is happening when one is trying to delete a database using DBCA utility. The reason for the failure is that there is no information about the database in /etc/oratab: Let’s reproduce it: Let’s add the information of the database into /etc/oratab file: Let’s try again to drop it: Happy ending 🙂
How to create the sample HR schema in your PDB?
Let’s create the sample schema HR in a new PDB Step 1 ) Navigate to the DEMO folder Step 2 ) Connect to the PDB and execute the “hr_main.sql” This is going to create the HR user into the PDB Step 3 ) Let’s connect as HR and check the tables
ORA-15260: permission denied on ASM disk group
ORA-15260 error pops up when you try to drop/create an ASM diskgroup while connecting as SYSDBA. Oracle 11g onward, oracle requires SYSASM privilege do CREATE or DROP an ASM diskgroup.
Create iSCSI disks in Synology ready for Oracle ASM
I use Synology DS920+ in order to provision disks for Oracle ASM. Let’s start leveraging it: Login to DS920+ and click on “SAN Manager” app: This is how it looks in my test environment: Creating the iSCSI targets: We will create 6 target disks that will be managed by ASM:– TGT-ASM-MGMT1 => 50GB– TGT-ASM-DATA1 =>…
ORA-00265: instance recovery required, cannot set ARCHIVELOG mode
Most probably you did a shutdown abort in order to speed up the bounce process 🙂 so you can set your database into archivelog mode.Below, you can find an example of how one can reproduce this error: The solution is an easy one. All you have to do is to bring you database in OPEN…
Rolling Database Upgrade from 19.3.0.0 to 19.11.0.0 Using Transient Logical Standby
Rolling upgrade with Transient Logical Standby is known as a MAA (Maximum Availability Architecture) technique, to minimize downtime during upgrade of Oracle database. Approaches: There are several methods which can be used: Manually from command line Manually using phsyru.sh script which is available since 11g (Doc ID 949322.1) Use DBMS_ROLLING package which is available since 12.1.0.1 (Doc ID 2086512.1) Note: for both manual…
How to clone ORACLE_HOME in 19c
I find that’s a good idea to have a different ORACLE_HOME when it comes to patching or maybe you want to have the same oracle home setup in a lower environment than PROD. The cloning comes in very handy rather doing the whole installation (including whatever patches have been deployed in the past) again. One…
How to have your own online VSCode Server
I’ve found this very interesting, having my online VSCode accessible from any laptop / tablet within my network. Bellow I will describe the steps I took to make that possible: To install a VS Code server, we will use code-server by coder. To install it, run the following command: This is the output: The installation is very minimal…
Broker configuration show ROLLING DATABASE MAINTENANCE IN PROGRESS after upgrade using dbms_rolling procedure
After executing an upgrade exercise in a dataguard environment (19c), the broker was still showing the status: “ROLLING DATABASE MAINTENANCE IN PROGRESS” This is due to a bug: Bug 26921039 – INCORRECT DGMGRL SHOW CONFIGURATION STATUS AFTER POST ROLLING UPGRADE SWITCHOVER Solution is simple: Execute the following statement on PRIMARY database and bounce it: Let’s…
