Oracle Performance Tuning Mock Interview
Master 30 Oracle Performance Tuning interview questions covering SQL optimization, indexing strategies, and execution plans.
Question 25 of 30
Is it a problem when you see that disk sorts are high when you run the v$sysstat command, and how would you correct this?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
The interviewer wants to make sure that you can discern whether there is an issue or not when you're managing the Oracle database, and specific events occur. This question is structured to first describe a scenario and then ask you whether what you're seeing indicates whether there is a problem. If there is, the interviewer wants you to explain how to correct it. By asking the question in this manner, the interviewer can both confirm your knowledge of Oracle database procedures and your ability to fix problems when they occur.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
As an experienced Oracle database administrator, you should be capable of recognizing commands, knowing what their output indicates, and addressing any issues which may occur. You are likely to be asked many questions similar to this during the interview. The first part of your answer should describe whether the output from a command indicates an issue are not. If there is no issue, you are done. If there is an issue, you should proceed to describe how to resolve it to the interviewer.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"If after running the vsysstat command you see that the disk sorts are high, it indicates that there is an issue with the database. To resolve this, you would tune the sort area parameters in the initialization files. It is best to start with the primary sort parameter SORT_AREA_SIZE."
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