August 2017

Behold the full stack developer

Well…sort of.  Well…not really Smile

This blog post is really about how with just a little bit of knowledge and patience you can bring several cool technologies and tools together to achieve what you want.

I’m off to OpenWorld at the start of October which will be an awesome event as usual, and in the last few days, the session catalog has been released, detailing the topics and the scheduling for events throughout the OpenWorld conference.

Solaris Cluster and Decreasing Resource Needs After Upgrade

Delphix Engineering and Support are pretty amazing folks.  They continue to pursue for solutions, no matter how much time it takes and the complex challenges they’re faced with supporting heterogenous environments, hardware configurations and customer needs.

This post is in support of the effort from our team that resulted in stability to a previously impacted Solaris 11.2 cluster configuration.  The research, patching, testing and then resulting certification from Oracle was a massive undertaking from our team and I hope this information serves the community, but in no way is recommended by Delphix.  It’s just what was done to resolve the problem, after logical decisions for the use of the system by our team.

get_tab2.sql - Free Tool to show Privileges on an Object Updated

I have a core set of PL/SQL scripts that I use when conducting Oracle security work on customer sites. Most of these are available on this website for many years. One of these is my script get_tab2.sql which shows grants....[Read More]

Posted by Pete On 30/08/17 At 12:11 PM

Presenting at UKOUG Tech17 Conference in December (Here Come The Warm Jets)

I presented at the UKOUG Tech14 conference in Liverpool and thoroughly enjoyed the experience. It was one of the better User Group conferences I’ve attended and winning both the Best New Oracle Speaker and Best Oracle Speaker awards made it that bit more special. So it’s with real excitement that I have the opportunity to […]

What Are NULL pname entries in v$process?

I got a message on Linked In today from Jijo who asked why when he queries v$process are some of the PNAME column values NULL. I have a simple script vproc.sql that I use when analysing databases for many years....[Read More]

Posted by Pete On 29/08/17 At 02:35 PM

Hadoop for Database Professionals – St. Louis (7. Sep)

Here’s some more free stuff by Gluent!

We are running another half-day course together with Cloudera, this time in St. Louis on 7. September 2017.

We will use our database background and explain using database professionals terminology why “new world” technologies like Hadoop will take over some parts of the enterprise IT, why are those platforms so much better for advanced analytics over big datasets and how to use the right tool from Hadoop ecosystem for solving the right problem.

More information below. See you there!

Also, Michael Rainey will deliver a SQL-on-Hadoop overview session in Portland, OR on 6. Sep 2017

 

 

12c Statistics on load–special cases

One of the cool features in 12c is the automatic collection of optimizer statistics when a table is either created or loaded via direct path from empty.  This makes a lot of sense because it saves us from what used to be the mandatory second step of gathering statistics whenever we loaded an empty table with data.

For example

11.2.0.4

Postgres vs. Oracle access paths XI – Sample Scan

I was going to end this series with the previous post because the last access path available in Postgres is a bit special: a Seq Scan that returns only a sample of the rows, at random. However, it is the occasion to come back to the difference between random and sequential reads.

I’m still working on the same table as in the previous posts, with 10000 rows in 1429 pages. 5% of rows is 500 rows and 5% of blocks is about 72 pages.

Pete Finnigan is now an Oracle ACE

I just got an email from the Oracle ACE program to tell me that I had been accepted onto the ACE program and was awarded the Oracle ACE status by Oracle. I have been active on the internet around Oracle....[Read More]

Posted by Pete On 25/08/17 At 07:28 PM

Oracle Security at UKOUG December 2017

I have just had an email from the UKOUG to say that three of my presentations have been accepted for the upcoming conference on December 4th to 6th at the ICC in Birmingham. I will have one talk on the....[Read More]

Posted by Pete On 25/08/17 At 04:16 PM