More and more people have been asking me how Delphix compares with Oracle EM 12c Cloud Control with Snap Clone.
Delphix compliments Oracle. Oracle and Delphix are partners. Delphix is an Oracle Gold ISV partner and we collaborated at Oracle Open World on hosting hands on Delphix labs.
Delphix ads value to Oracle by enabling Oracle customers to more efficiently and easily make copies of there databases. Databases are typically copied from a production (more...)
Two most popular causes for log file sync waits are redo filesystem I/O and CPU (or CPU scheduling). I’d like to share an example of a third scenario.
A few days ago, I noticed a weird spike in log file sync average duration on a production 11.2 database:
select time, snap_id, round(time_delta/1e3/nullif(waits_delta,0), 1) avg_wait_ms, waits_delta num_of_waits, round(time_delta/1e6) total_seconds from ( select sn.snap_id, sn.begin_interval_time time, e.total_waits - lag(e.total_waits) over (partition by e.event_name (more...)
It is common knowledge, or at least it should be, that Oracle has
released version 126.96.36.199 in June 2014. which has a feature called
“Oracle In-Memory”. The name is a tad confusing, since many
features were called “in-memory” before, from “Very Large
Memory” to Times 10 product.
This “In Memory” option is a licensed product featuring
columnar storage, in addition to the normal buffer storage, almost
identical to IBM’s “Blu acceleration” (more...)
Well, the annual spectacle of enormous proportions has come to a conclusion again. And thats probably the first reason I’d recommend OpenWorld to anyone who works with Oracle who has never been to it. It’s a jaw dropping moment just to see the scale of the event, and how impressively its organised in terms of facilities, lunches, registration and the like.
But onto the technical elements, here’s my impressions of this years conference:
1) Big (more...)
Thanks to anyone that came along to my sessions at OpenWorld.
You can review the slides via the links below:
Although there had been many analyst and Oracle ACE briefings for much of the preceding week, Sunday night was the ‘proper’ opening for Oracle OpenWorld 2014. It kicked off with Larry’s first keynote of the conference. (He traditionally does two, however skipped the second last year to watch the thrilling finale to the 2013 America’s Cup.)
His hour long address was given over exclusively to the cloud. Here’s a summary of the important points (more...)
Most of the time when talking about Talend jobs, people think of standard ETL (Extract, Transform, Load). But in some cases there’s the need to check the incoming data before loading them into the target rather than just transforming it. We refer to this process as E-DQ-L (Extract, Data Quality, Load).
One of the things that you might want to check before loading is schema compatibility. (more...)
I was testing SQL plan baselines on a base 188.8.131.52 release of Oracle on a 64 bit Linux virtual machine. I ran DBMS_SPM.LOAD_PLANS_FROM_CURSOR_CACHE to create a SQL plan baseline for a test query after running that query once to get its plan in the cursor cache. When I ran the test query after creating the SQL plan baseline and called dbms_xplan.display_cursor to see its new plan I got (more...)
The big annual Oracle event is almost here – starting Sunday 28 Sep with the User Group Sunday followed by four days of presentations in around 50 tracks!
If the agenda seems a bit overwhelming, read the OTech Magazine Special OpenWorld Issue to find some of the highlights and can’t-miss sessions.
My sessions are:
- Mastering Oracle ADF Bindings: Advanced Techniques (UGF3484). Sunday Sep 28 at 10am in Moscone South room 270
- Starting Your Oracle Application (more...)
What are the real technical talks at OOW amid all the marketing fluff? I don’t know all of them but I can vouch for the following
|Sunday||9:00||UGF2563||Jeremiah Wilton, Marc Fielding||M South 309||24/7 Availability with Oracle Database Application Continuity|
|9:00||UGF4378||Gwen Shapira||M South 308||Analyzing Twitter Data with Hadoop – Live Demo|
|10:00||UGF3587||Tim Gorman||M South 301||Scaling To Infinity: Partitioning (more...)|
Its day minus 3, or day +1 depending on your point of view at Openworld 2014.
I’m here a few days early for the Ace Director briefings, where a selection of product managers provide an insight into what is coming in the Oracle world, either at Openworld or in the coming year.
I must admit, I arrived to the briefings somewhat sceptical because a couple of years ago, when I was last at the briefings, (more...)
Next week during Oracle Open World, be sure and come on Monday and Tuesday to the free Oaktable World and on Tuesday to Delphix hands on lab and free 90 day trial version at #CloneAttack at the same venue as Oaktable World. The labs will also be joined by DBvisit for #RepAttack and Solarwinds (Confio) for #MonitorAttack.
Beer, Meat, Explode
Originally posted on Oracle Data Warrior:
I just got this email from Amazon:
Congratulations, your book “UNA LISTA DE VERIFICACIÓN PARA REALIZAR REVISIONES A LOS DISEÑOS DE MODELOS DE DATOS” is live in the Kindle Store and is currently enrolled in KDP Select. It is available for readers to purchase here.
If you are in Mexico, you can get the book here.
If you are in Spain, you can get it here.
Here is my schedule of presentations at Open World this coming week.
I most excite about my talk on Sunday. The Phoenix Project is a awesome book everyone should read, DevOps is the rising star of IT and this talk will empower DBAs to take their careers to the next level with data virtualization – virtualize, govern and deliver data efficiently boosting your companies efficiencies and bottom line much greater than any other change one could make (more...)
At Oracle Open World we will be leading hands on labs to install a fully operation Delphix environment on your laptop.
The labs will be hosted at the Creativity Museum, the same location as Oaktable World on Tuesday Sept 30 from 10am to 5pm. Solarwinds Confio and DBvisit will also beholding #MonitorAttack and #RepAttack in the same location.
The labs for Delphix will be led by
Last week we had a great webinar with Jonathan Lewis as he explained his hands on experience of Delphix, how Delphix works internally and some use cases that Delphix solves for Jonathan.
Jonathan will be joining us a the Delphix booth at Oracle Open World and giving shorter version of the presentation at 10am on Monday and Tuesday and 11am on Wednesday.
Some people wonder whether there will be a 12c version of Oracle Forms or not.
Instead of making guesses, the best way is to ask the people who know best.
So, after getting this question, I asked Michael Ferrante, Oracle Forms Product manager.
Here’s his answer:
Version 12 of Forms and Reports is tentatively planned for releases sometime in CY2015. At this time, we (Oracle) are not permitted to share exact dates, but (more...)
Log parallelism is an optimization introduced in 9.2 that reduces latch contention due to redo copy to the log buffer by enabling multiple public redo buffers (or “strands”). In many cases, however, it can cause a massive degradation of commit performance (“log file sync” wait increase). In this blog post, I will describe the mechanism, illustrate it with test results, and discuss solutions. Tests were performed on several different 11gR2 databases on Solaris servers.
Log parallelism is controlled by (more...)