This is just a short note to point out that I finally uploaded a new version of TVD$XTAT. To download it click here. Not only I introduced some new features, but I also fixed several bugs. The detailed change log since Beta 10 is the following: Added support for bind sets using array processing Added […]
Last January, in the following tweet, I pointed out that the documentation vaguely mentions that a trace file may be split into several files. Did you successfully tested the new MAX_DUMP_FILE_SIZE behavior? If yes, which version/OS?https://t.co/4F9f9wsT95 pic.twitter.com/X2Y7FNf1HG — Christian Antognini (@ChrisAntognini) January 20, 2016 As a follow-up, few days later Jonathan Lewis published a post […]
Today I started having a look to the Oracle Database Exadata Express Cloud Service announced last week at Oracle OpenWorld. Note that since the amount of resources provided (in summary, 1 OCPU, 20 or 50 GB of database storage) is very limited, in general, in my opinion that service will only be useful for functional […]
The second edition of Cary Millsap‘s MASTERING ORACLE TRACE DATA (MOTD) is finally available. You can order it through amazon.com. I had the pleasure not only to review MOTD while Cary was working on it, but also to write a foreword that summarizes what I think about the book. So, if you are asking yourself […]
With the INMEMORY clause you can specify 4 sub-clauses: The MEMCOMPRESS clause specifies whether and how compression is used The PRIORITY clause specifies the priority (“order”) in which the segments are loaded when the IMCS is populated The DISTRIBUTE clause specifies how data is distributed across RAC instances The DUPLICATE clause specifies whether and how […]
Extended SQL trace (a.k.a. debugging event 10046 at a level higher than 1) is one of the key features provided by Oracle to troubleshoot applications using Oracle Database. For many years the available levels were always the same (4, 8 and 12). In fact, since I wrote my first paper about it in May 2000 […]
This is just a short post to point out that the company I work for, Trivadis, is organizing 3 classes with Cary Millsap. The topic, as the title suggests, is Cary’s 1-day class entitled “Mastering Oracle Trace Data”. The following dates and locations are planned: September 11, 2012 – Münich (DE) September 13, 2012 – […]
Recently I was involved in a project where I had to trace the database calls of an application based on Oracle Portal 10.1.4. The basic requirements were the following: Tracing takes place in the production environment Tracing has to be enable for a single user only Instrumentation code cannot be added to the application Given […]
The release 11.2.0.2 not only provides a lot of documented new features, but also provides undocumented ones. Today, I would like to spend few words about the undocumented changes introduced in the TKPROF output. In this area it is interesting to point out that after the introduction of wait events in Oracle9i, there were really […]
While writing a post about the TKPROF new features in 11.2.0.2 I noticed that I didn’t write one about an important change introduced in 11.2.0.1. So, before finishing the other one, let’s have a look to what changed in 11.2.0.1. One problem with TKPROF up to 11gR1 is that when the AGGREGATE parameter is set […]