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Oracle database internals by RiyajDiscussions about Oracle performance tuning, RAC, Oracle internal & E-business suite.
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Discussions about Oracle performance tuning, RAC, Oracle internal & E-business suite.
http://orainternals.wordpress.com/
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Oracle database internals by Riyaj | orainternals.wordpress.com Reviews
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Discussions about Oracle performance tuning, RAC, Oracle internal & E-business suite.
orainternals.wordpress.com
2015 January « Oracle database internals by Riyaj
https://orainternals.wordpress.com/2015/01
Oracle database internals by Riyaj. Discussions about Oracle performance tuning, RAC, Oracle internal and E-business suite. Click image for details:. Links for training, scripts etc. Archive for January, 2015. RMOUG Training Days 2015. Posted by Riyaj Shamsudeen. On January 19, 2015. I will be talking in Rocky Mountain Oracle User Group Training Days 2015( http:/ www.rmoug.org. With live demos (hopefully there will be no failures in the demo). My topics are:. Tagged: gc buffer busy.
2015 March « Oracle database internals by Riyaj
https://orainternals.wordpress.com/2015/03
Oracle database internals by Riyaj. Discussions about Oracle performance tuning, RAC, Oracle internal and E-business suite. Click image for details:. Links for training, scripts etc. Archive for March, 2015. Posted by Riyaj Shamsudeen. On March 25, 2015. I will be presenting two topics in IOUG Collaborate 2015 in Vegas. Use the show planner and add my presentations to your schedule🙂. Session #189: April 13 Monday 9:15 to 10:15AM Topic: Oracle Database 12c In-Memory Internals. Room Palm B.
2015 April « Oracle database internals by Riyaj
https://orainternals.wordpress.com/2015/04
Oracle database internals by Riyaj. Discussions about Oracle performance tuning, RAC, Oracle internal and E-business suite. Click image for details:. Links for training, scripts etc. Archive for April, 2015. Posted by Riyaj Shamsudeen. On April 15, 2015. Sometimes, demos do fail. At least, I managed to complete the demos with zero slides🙂 Apologies to the audience for my R-rated rants about laptop issues. You can download presentations files from the links below. Blog at WordPress.com.
Tuning latch contention: Cache buffers chain latches « Oracle database internals by Riyaj
https://orainternals.wordpress.com/2008/07/30/tuning-latch-contention-cache-buffers-chain-latches
Oracle database internals by Riyaj. Discussions about Oracle performance tuning, RAC, Oracle internal and E-business suite. Click image for details:. Links for training, scripts etc. Laquo; Tuning ‘log file sync’ wait events. Import performance: Does import of date column resorts to single row inserts, like lob columns? Tuning latch contention: Cache buffers chain latches. Posted by Riyaj Shamsudeen. On July 30, 2008. In Oracle SGA, buffer cache is the memory area data blocks are read in to, aka buffer c...
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12c « SQLMDX
https://sqlmdx.net/tag/12c
Eventually it's all about data. Dsvolk Oracle News [ru]. Posts Tagged ‘12c’. Fetch first … percent. On December 19, 2015. New syntax for so called “Top N” queries was introduced in Oracle 12c. It can be used to return either fixed number of rows or specified percent of rows in a table. Obviously latter requires to know the total number of rows to return the result so let’s check what is happening under the hood in this case. Read the rest of this entry ». Context switches may not be an issue any longer.
built-in packages « SQLMDX
https://sqlmdx.net/tag/built-in-packages
Eventually it's all about data. Dsvolk Oracle News [ru]. Posts Tagged ‘built-in packages’. On September 27, 2014. Dbms comparison was introduced in 11g as a powerful tool to compare and synchronize table data in different tables. Even though it’s quite flexible it has some limitations:. 1 The tables are supposed to be in different databases. Therefore if you want to compare tables in the same database you will need to create fake db link. 2 The tables must have unique indexes. Blog at WordPress.com.
2014 September « SQLMDX
https://sqlmdx.net/2014/09
Eventually it's all about data. Dsvolk Oracle News [ru]. Archive for September, 2014. On September 30, 2014. Almost everyone who has some experience with Oracle knows about notorious notion called “context switches” between SQL and PL/SQL engines. You can find a great explanation of context switches by Tom Kyte here. Read the rest of this entry ». On September 27, 2014. Dbms comparison was introduced in 11g as a powerful tool to compare and synchronize table data in different tables.
2014 May « SQLMDX
https://sqlmdx.net/2014/05
Eventually it's all about data. Dsvolk Oracle News [ru]. Archive for May, 2014. Amending statistics list for autotrace. On May 24, 2014. I wonder why Oracle has not added possibility to change the list of statistics for autotrace but unfortunately that’s a fact. You cannot change the default format of the statistics report. However there are at least three different ways to view the extended list of statistics for given session. Advantage is the ease of monitoring several sessions with the same client id.
2013 December « SQLMDX
https://sqlmdx.net/2013/12
Eventually it's all about data. Dsvolk Oracle News [ru]. Archive for December, 2013. Query transformations in Oracle: join elimination. On December 14, 2013. Join elimination appeared in Oracle version 10gR2. Read the rest of this entry ». Query transformations in Oracle: or-expansion. On December 8, 2013. As you may know there are two types of query transformations in Oracle: heuristic-based and cost-based. Read the rest of this entry ». Blog at WordPress.com.
2014 October « SQLMDX
https://sqlmdx.net/2014/10
Eventually it's all about data. Dsvolk Oracle News [ru]. Archive for October, 2014. Yet another approach to overcome bloom filter bug. On October 4, 2014. Bloom filter may help to dramatically reduce amount of data to be read from partitioned table by eliminating unneeded partitions. Is a nice introduction into bloom filters. Unfortunately bloom filter doesn’t work with DML which causes a lot of challenges in 11gR2. However that note doesn’t suggest any workarounds. Read the rest of this entry ».
PowerShell « SQLMDX
https://sqlmdx.net/category/powershell
Eventually it's all about data. Dsvolk Oracle News [ru]. Archive for the ‘PowerShell’ Category. Evolution of regular expressions. On July 2, 2016. Frankly speaking “evoulution” is not quite proper word to title this post. I’m going to show some extensions in regular expressions in different languages in compare to their implementation in Oracle. Oracle supports regular expressions according to POSIX standard draft 1003.2/D11.2 and two extensions. Matching capabilities for multilingual data.
Perl « SQLMDX
https://sqlmdx.net/category/perl
Eventually it's all about data. Dsvolk Oracle News [ru]. Archive for the ‘Perl’ Category. Evolution of regular expressions. On July 2, 2016. Frankly speaking “evoulution” is not quite proper word to title this post. I’m going to show some extensions in regular expressions in different languages in compare to their implementation in Oracle. Oracle supports regular expressions according to POSIX standard draft 1003.2/D11.2 and two extensions. Matching capabilities for multilingual data.
2013 November « SQLMDX
https://sqlmdx.net/2013/11
Eventually it's all about data. Dsvolk Oracle News [ru]. Archive for November, 2013. Query transformations in Oracle: view merging. On November 14, 2013. Query transformations in Oracle is a part of query optimization. In short, query optimization can be divided into three parts. 1 Logical optimization: query transformation. 2 Physical optimization: searching for optimal access paths, join methods, join orders. 3 Cost Estimator: choosing the optimal plan. Read the rest of this entry ».
CBO « SQLMDX
https://sqlmdx.net/tag/cbo
Eventually it's all about data. Dsvolk Oracle News [ru]. Posts Tagged ‘CBO’. Query transformations in Oracle: join elimination. On December 14, 2013. Join elimination appeared in Oracle version 10gR2. Read the rest of this entry ». Query transformations in Oracle: or-expansion. On December 8, 2013. As you may know there are two types of query transformations in Oracle: heuristic-based and cost-based. Read the rest of this entry ». Query transformations in Oracle: view merging. On November 14, 2013. 2 Phy...
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Oracle database internals by Riyaj
Oracle database internals by Riyaj. Discussions about Oracle performance tuning, RAC, Oracle internal and E-business suite. Click image for details:. Links for training, scripts etc. Oracle Open World 2017 presentation. Posted by Riyaj Shamsudeen. On September 26, 2017. I will be presenting about ASM internals in Oracle Open World 2017 conference on Sunday October 1st. Following are the details:. Session Title: Oracle Automatic Storage Management and Internals. Start Time: 12:45:00 PM. On March 30, 2017.
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Oracle Consulting Netherlands Integration Community
Oracle Consulting Netherlands Integration Community. This blog is maintained by members of the SOA and Integration community working for Oracle Consulting Netherlands. Friday, 15 August 2008. Although there’s a bunch of stuff out there about transaction handling, bpel and esb, see copied links for a start, it still took me some time to figure out who to get it to work. So, I’ll just add one to the number of blogs / discussions out there. Xml version = '1.0' encoding = 'UTF-8'? Property name="transaction"...
