I’ve seen some very good information posted in this feed which combines blog postings from many different Oracle performance experts who are part of what is called the “Oak Table”
I’ve been using Internet Explorer to keep track of new posts in its “Feeds” section of (more...)
I’ve had a problem with Adobe Fireworks CS5 ever since upgrading to a Retina Display MacBook. The problem is that the eye-dropper colour picker tool just doesn’t work any more. At all. Very frustrating.
I came across a very simple workaround today which can be found here:
The above is so cool.
The graphic shows the latency heatmap of “log file sync”. I was running a swingbench load and at the same time throttling I/O such that latencies started off good then got worse and then back to normal.
All I did was type
sqlplus / as (more...)
I just read this post about a new patch that will allow you to affect the way the optimizer calculates clustering factor and hence how likely it is to choose a particular index for a query plan.
Pretty cool. I haven’t tried it, but it looks (more...)
Today I would like to share something Fishbowl Solutions has been working on internally for a little while now and started to implement at customer sites – Fishbowl Multi-Upload and Batch Metadata Editor.
Cost Based Oracle – Fundamentals (November 2005)
But the most interesting function for our purposes is sys_op_countchg(). Judging from its name, this function is probably counting changes, and the first input parameter is the block ID portion (object_id, relative file number, and block number) of the table’s rowid, so the (more...)
This is a good web site with Oracle internals information:
I’ve benefited from this one for years.
Collaborate brought Fishbowl Solutions to Denver, Colorado this year. Overall, it was another well-coordinated and well-attended event. Special kudos go to Al Hoof and Dave Chaffee of the WebCenter SIG for IOUG (Independent Oracle Users Group). They spend a lot of time scheduling the WebCenter sessions, scanning the attendees who (more...)
I’m about to make a serious move into online webinars, and as a warm-up exercise I’ll be doing a couple of one-hour free events on Friday 17th May.
I’ll be talking through a Powerpoint presentation called “Smarter Statistics in 11g” twice, once at 2:00 pm BST, and again at 6:00 (more...)
In my previous post I explained that setting db_writer_processes=1, dbwr_io_slaves=32 made a 2-3 times reduction in run time of my test of 15 concurrent updates.
Further testing has shown that an even greater improvement – really 10 times – can be made by switching to direct IO and maxing out (more...)
Yesterday I was in Berlin (always worth to go there) for attending the UIKonf: an iOS developers conference. The location (Heimathafen) was awesome! Pretty good atmosphere, and awesome coffee all day. Yay!
The talk line-up was good as well. They had four rounds of sessions. All in one room, (more...)
Oracle OTN is hosting a full day of free* hands on Oracle labs on May 22, 2013 in Pleasanton, Ca
- Re-engineering Your Database Using Oracle SQL Developer Data Modeler 3.1
- Learn how to use SQL Developer Data Modeler to import your database schema, make changes and generate the modified (more...)
Delphix has been selected as one of Gartner’s Cool Vendors in Storage for 2013!
Gartner uses the Cool Vendor awards to highlight innovative and disruptive new companies that are rapidly changing how enterprises do business.
Delphix 2013 HIGHLIGHTS TO DATE
|Delphix recently engaged with Oracle guru Jonathan Lewis who (more...)|
Learn how to extend the content management capabilities of Oracle WebCenter Content to Apple iPads and Android tablets. Plan to attend this webinar to see how Fishbowl’s Mobile Library Tablet Application enables users to find, store, view, organize and share content from tablets while away from their desks. We (more...)
I got a mail this week from Richard Harrison:
See you made it in to oracle magazine this month.That’s the pinnacle of any oracle professionals career – all downhill from here on in “
I was not aware of my sudden raise to fame, but Richard is (more...)
I’m working on an HP-UX system that doesn’t have asynchronous I/O configured and I’m getting a bunch of “free buffer waits” which indicates that the DBWR processes are having trouble writing updated blocks from memory to disk fast enough. Some preliminary testing I’ve done implies that I should change (more...)