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Oracle Tuning - Glossary
Customizing DBA Performance - Exercise
Using the V$ views
Objective:
Write an SGA snapshot routine using the V$ views.
Scoring
This exercise is worth a total of 10 points. Once you have completed your answer you will submit your answer.
Background/overview
You suspect that your database is suffering from too many disk sorts, for instance sort_area_size too small. You have decided that a script that interrogates V$SYSSTATwould give you the total number of memory sorts, and the total number of disk sorts.
'sorts (memory)' 'sorts (disk)' select ??? ??? from V$SYSSTAT where ??? ;
Instructions
Given the information above, rewrite this script to query the V$SYSSTAT view, and gather the required information.
The columns for the sort value columns all begin with 'sort:
Submitting your exercise
Enter your answer into the text box below. Click the
Submit
button to submit the code .
Hints:
To make the exercise more challenging, try to display the sort ratio by joining V$SYSSTAT against itself.