In my work among other things I tune and tweak solutions for EXADATA. Today I’ll write about a big improvement we achieved with a process that moves data from the operational tables to the ones where the history is stored.
This will not be a technical post. While I (more...)
NZOUG 2013 is being held in Wellington at the iconic Te Papa Museum on the beautiful waterfront on the 18th and 19th of March, with an additional Workshop Day on the 20th March.
The conference will see a wealth of brilliant speakers from around the world, including Tom Kyte, Graham Wood, Andrew Holdsworth, John Schiff and Nadia Bendjedou and of course top speakers from Middle Earth (NZ) as well. Tom, Andrew and Graham will be (more...)
Today at Amazon AWS re:invent, Amazon announced a cloud service for data warehouse customers. It allows to easily analyse petabytes of data, interacts with known BI solutions, and it’s usually 10 times faster than traditional implementations… queries run really blazing fast! This service is certified by MicroStrategy and Jaspersoft.
Redshift runs (more...)
For several years I’ve been using Oracle and other SQL relational databases. I’ve dedicated most of the time of my researching and developing on Oracle technology. There’s no question that Oracle leads on site installations and that the quality of the products and the ROI is one of the best. (more...)
Just a quick mention when you get the error bellow while trying to create a trigger for example:
CREATE OR REPLACE TRIGGER AGE_GROUP_TRG
BEFORE INSERT ON AGE_GROUP REFERENCING
NEW AS NEW
FOR EACH ROW
SELECT AGE_GROUP_SEQ.nextval INTO :NEW.AGE_GROUP_ID FROM dual;
ORA-00603: ORACLE server session terminated by fatal error
ORA-00600: internal error code, arguments: [kqlidchg1], , , , , , , , , , , 
ORA-00604: error occurred at recursive SQL level 1
ORA-00001: unique constraint (SYS.I_PLSCOPE_SIG_IDENTIFIER$) violated
00603. 00000 - “ORACLE server session terminated by fatal error”
*Cause: An ORACLE server session (more...)
We can’t stop the social flow! Social networks are ruling the world. So as I had some free time lately, I decided do create a facebook fan page. For most of us with a facebook profile visited daily, it’s easier to follow syndications and we’ve got a better (more...)
These days I’m implementing Oracle Dataguard for two Oracle databases 10.2 as part of disaster recovery project, one of them is around 1.7TB, not yet production. As part of the DG setup backups have to be available for both primary and standby. I preferred to use ASM and was able to negotiate with the storage admin to run storage replication for the FRA disks during the backup. This way I would have the same structure and files, locally at the disaster site immediately after the backup of the primary database is completed.
Unfortunately two weeks passed and by (more...)
In the last 10 weeks suddenly I lost 80% of my blog visits… thanks to google! In the last 6 months I found dozens of copycats of posts I wrote and those sites have a greater rank than my legit original blog!
For that, Thank you a lot google… you’re (more...)
This is something I would like to share for a long time, but for one or another reason I didn’t. The error is nothing special, but then I run into very interesting case.
This happen when I had to shutdown one server for maintenance and then boot it again. Once the OS started I notice that the database didn’t ran automatically. When I try to run it manually I got the following error:
SQL> startup ORA-01078: failure in processing system parameters ORA-01565: error in identifying file '+DATA/orcl/spfileorcl.ora' ORA-17503: ksfdopn:2 Failed to open file +DATA/orcl/spfileorcl.ora ORA-15077: could not locate (more...)
These days I configured Oracle OSWatcher tool and yast package for EM Grid Control used to manage and monitor Oracle servers. I want to share how quickly to configure and start using them on Linux.
OSWatcher invokes system utilities like ps, top, iostat, vmstat, netstat and collects data according to the specified parameters. You can download it from Metalink.
unzip it to OSWatcher directory you would use($OSWATCHER_HOME)
tar -xvf oswbb4.0.tar
OSWatcher has been renamed to OSWatcher Black Box to avoid the confusion with the too many tools with this name. OSWatcher Black Box (more...)
I think it is time to write another blog post. I will talk about an old but very useful way how to clone a database from one server to another. In my particular case it is the best solution that perfectly fits to all requirements put on the (more...)