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Yu Denis Sun
Lives in USA
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Yu Denis Sun

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I ame the boss  of jjgljbtrgvjxmkc .,k
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Yu Denis Sun

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Monitoring Oracle GoldenGate Latency
Today I've implemented an approach to monitor OGG latency. Here I will describe what I've done.   1. Create a table gg_latency in source and target databases: create table gg_latency
(
extr varchar2(10),
pump varchar2(10),
repl varchar2(10),
update_...
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Yu Denis Sun

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Killing DBSNMP sessions not easy
We had a performane issue for a prodcution database today. The CPU utilization went up. When I logged into the server and tried to log into
the database as sysdba, I got ORA-00020 error: $sqlplus "/ as sysdba"

SQL*Plus: Release 11.2.0.2.0 Production on Fr...
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Yu Denis Sun

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You are welcome! 
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Yu Denis Sun

commented on a video on YouTube.
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sdvgtrbfjzbz ddn beast mode typing
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Yu Denis Sun

commented on a video on YouTube.
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meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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Just another example - Writing efficient SQL with analytic function
I have a monitoring job set up to alert me when the buffer gets per execution of a SQL above certain threshold.
Today I received one as below: =================================================
start : 13-MAR-15 02.00.23.885 PM
end : 13-MAR-15 03.00.48.1...
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Yu Denis Sun

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Just Learned: About listener.ora
Recently I have been planning to upgrade a 10.2.0.4 Oracle database to 12.1.0.2. For that, I created a test db called minidb to play with upgrade steps. At the end, I need to bring up a listener for that db. This is what I've just learned: do you know we ca...
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Yu Denis Sun

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Probably best known for creating the website that became Yahoo Store (in LISP) and then selling it to Yahoo -- along with creating Hacker News and arguably inventing the modern spam filter, Paul Graham spends his time lately running Y-Combinator, the seed venture capital firm he founde...
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Oracle DBA
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  • Oracle DBA, present
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Introduction

Born in Chongqing, grew up in Shanghai, both in China. Earn a living in USA now as an Oracle DBA. I find I am enjoying what I am doing with Oracle. Before starting my IT career, I had several years of research experiences in the area of catalysis, materials chemistry,computational chemistry and computer simulations.

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Currently
USA
Previously
Shanghai, China