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Topic: Performance & Tuning >> Interview question pls reply Urgent!!

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 Title: Interview question pls reply Urgent!!
 mohamed riaz  Posted: Feb 27, 2008 12:48:27 AM

 Total Post: 74
 Joined: Sep, 2006






 Hi all,

please answer this question?

Let's say, user says performance of the database is low, in this case how will the DBA tune the database?


 Mohammed Taj
Posted: Feb 27, 2008 12:52:59 AM  

 Total Post: 634
 Joined: Jul, 2007






 
database tuning is not single line answer.
it is very vast.
need to search , research, please use google ,oracle forms or post here more details for more and clear answer.

 mohamed riaz
Posted: Feb 27, 2008 07:00:05 AM  

 Total Post: 74
 Joined: Sep, 2006






 
Hi,

Basically how will you tune the database if the performance of the database is low.

Riaz


 Mohammed Taj
Posted: Feb 27, 2008 08:25:09 AM  

 Total Post: 634
 Joined: Jul, 2007






 
you didn't understand what i said in my previous post.

for instance: generate statspack report and analyze

 Gitesh
Posted: Mar 12, 2008 11:13:10 PM  

 Total Post: 157
 Joined: May, 2005






 
Hi,

There are lot of reasons to slow down performance of database. You can start with following steps.

Check tnsping to server how it reacts.
check usage of CPU and memory using top or topas command
Check memory and paging usage using sar and vmstat command
check database wait events for session level
Generate statspack reports for more investigation
Check alert.log any error logs in the trace files.
Check listener.log for newer entries.

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