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Fedora 20 : Upgrade from Fedora 19

It’s a little over a month since Fedora 20 was released, but during a terrible bout of insomnia last night I decided to upgrade my desktop PC.

The upgrades using “fedup” worked fine for the previous releases (Fedora 18, Fedora 19). Unfortunately, it failed abysmally for the upgrade to Fedora 20. I tried a few times, but I was not able to troubleshoot it, so I gave up and did a reinstall.

I’ve got an SSD for the system drive, but keep almost everything of importance on a second drive (and a backup drive). I tend to do most things in VMs, so I ended up doing the following:

Free developer day in Perth

Got a massive day of goodies coming to anyone in Perth..for absolutely no cost – just your time and your enthusiasm.

There’s something for

  • database developers
  • Apex developers
  • ADF developers

See you all there …

http://bit.ly/oddperth20140218

ORA-65131 grrrr

So…the future is container databases ?

Cool ! I’ll create all my databases as container databases….I’m so happy….until

SQL> CREATE FLASHBACK ARCHIVE longterm TABLESPACE demo RETENTION 1 MONTH;
CREATE FLASHBACK ARCHIVE longterm TABLESPACE demo RETENTION 1 MONTH
*
ERROR at line 1:
ORA-65131: The feature Flashback Data Archive  is not supported in a pluggable database.

It is documented but seriously….that’s not so flash :-)

Man…I really really like this :-)

Yeah yeah, you can argue with me about backward compatibility, but I’m so glad someone snuck this into 12c…

11.2

SQL> grant resource, connect to demo identified by demo;

Grant succeeded.

SQL> select privilege
  2  from   dba_sys_privs
  3  where  grantee = 'DEMO';

PRIVILEGE
----------------------------------------
UNLIMITED TABLESPACE

12.1

SQL> grant resource, connect to demo identified by demo;

Grant succeeded.

SQL> select privilege
  2  from   dba_sys_privs
  3  where  grantee = 'DEMO';

no rows selected

Virtual Columns

This is just a temporary note to let people know I’ve added an update to my Virtual Stats article, highlighting a possible performance threat when you gather stats.

I’ll be deleting this note in a couple of days, so I’ve disabled comments and pingbacks

 

 

Database as a Service

Concept of Hand with Electronic Fingerprints

by Chris Fuller and Kyle Hailey

To improve infrastructure and DBMS software utilization, and to drive greater IT operational productivity, companies are implementing internal DaaS capabilities to address their database needs.

Screen Shot 2014-01-15 at 11.17.58 AM

 

Monitoring Application TCP traffic on Mac

viamoi

photo by Stuart Williams

My internet provider said my service was degraded due to the large amount of data uploading from my computer. As far as I knew, my computer wasn’t uploading anything but I didn’t know how to prove it.

I decided to try and write a DTrace program to look at it. (I also installed “Little Snitch” which seems pretty cool).

Importance of Feedback

4386925065_1ef4a396b8_z

photo by  Idaho National Laboratory

The human brain works so well because it calculates outcomes as it takes actions feeding back the current results compared to the expected results  which allows immediate corrections if the two are not aligning.

automate or die – the revolution will be automated

:mobilestreetlife_1

photo by David Blackwell.

The worst enemy of companies today is thinking that they have the best processes that exist, that their IT organizations are using the latest and greatest technology and nothing better exists in the field. This mentality will be the undermining of many companies.