Tag: Oracle

Pythian’s 9th Oracle ACE

I have just received notification of my acceptance into the Oracle ACE program and will enthusiastically support and continue to be an evangelist for the Oracle offerings though most of my heart lies in the same place as many current and previous personnel at this fine company – the CORE database technology.

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Read GoldenGate Discard Files

GoldenGate discard files can get big and cumbersome. To address this, I have build a PL/SQL function to read the discard files thereby reducing the output to one line per error and it also means that I can apply SQL logic to filter out the unwanted entries. Here’s how to do it.

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Log Buffer #296, A Carnival of the Vanities for DBAs

This week’s Log Buffer #296 focuses on Oracle, SQL, and MySQL weblogs from across the planet. Log Buffer Editions are the manifestation of the fact that nerd bloggers from databases are not only growing but they are also producing immense volume of quality ramblings. Enjoy.

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Moving Optimizer Statistics for all Objects Involved in an Execution Plan (between databases)

In this blog post I would like to share with you how I have transferred optimizer statistics and as result managed to get exactly the same execution plans in both production and development environments. I am not going to go through all the details in this blog post as I am limited in time today. You can find all the steps I have used in my github.com script repository.

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Log Buffer #295, A Carnival of the Vanities for DBAs

Horizon is getting cloudier. But these low hanging clouds are not darker or ominuous in any way. These are the clouds of enabling technologies providing mortals, drops of technologies according to their wishes. Behind this seamless information troposphere, databases are floating, again on demand. This Log Buffer Edition showers the droplets of blogs from databases in Log Buffer #295.

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Character Set Conversion 10g and 11g – Part 1

This post is the first in a series of discussions … perhaps you have never had the pleasure of needing to change a character set. If you have not and soon do, purchase a good sleeping bag as you may be at the office late for a few days to get the task accomplished.

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Upgraded to 11GR2? Congrats! You Are in Direct Reads Trouble!

I made this blog title intentionally provocative. However it isn’t far from the truth. Don’t believe me? Continue reading :)

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Case Study: How to Return a Good SQL Execution Plan from 10g Days After an 11g Migration

Any database upgrade suppose to change SQLs’ execution plans for the better. In 99 cases out of 100 this is exactly what happens. What to do with rest 1% of the SQLs? This blog post is exactly about such unlucky case I have resolved today. Hope that you will learn something out of it. As always let me know what you think using the comments section at the end of the post.

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Yury, Remember: This is How You Disable AUTO_TASKs in 11G

I find myself forgetting on how to disable Oracle AUTO_TASKs on regular basis. Therefore I have decided to document it under this small blog post. As an additional bonus I may hear others experience in the area. So if you disagree or have some other experience please do not hesitate to comment under this post.

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Log Buffer #294, A Carnival of the Vanities for DBAs

Log writer process of Oracle is one of the most revered background process, a real work horse, a real charming darling who keeps the whole Oracle database system consistent and humming beautifully and many technologies in Oracle sprout from this good old process. Consistency is the key in database systems, and so in the Log Buffer Editions, and this Log Buffer #294 continues it. And yes, the coolest 2012 PASS Summit is also there.

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