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Devendra Singh
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Performance Test Engineer
Performance Test Engineer

273 followers
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Automatic Workload Repository (AWR)
Automatic Workload Repository (AWR) is used to collect performance statistics including:   Wait events used to identify performance problems.  Time model statistics indicating the amount of DB time associated with a process from the V$SESS_TIME_MODEL and V$...
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Analyzing Index Usage and Deciding to Remove Index
In my previous post http://performancetestingcentre.blogspot.in/2015/01/rebuilding-indexes-for-better.html I talked about how to rebuild indexes for better performance. Here, we will see how to identify indexes which are not used. Databases have two primary...
Analyzing Index Usage and Deciding to Remove Index
Analyzing Index Usage and Deciding to Remove Index
performancetestingcentre.blogspot.com
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Rebuilding Indexes for better Performance
Hi All, wishing you a Very Happy New Year and great success and learning this year. I am continuing from my last post http://performancetestingcentre.blogspot.in/2014/10/analyzing-extent-of-index-fragmentation.html After you analyse the index report, you ma...
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Analyzing the extent of index fragmentation and rebuilding the indexes for performance improvement
Hi Readers, Glad to meet you again. Carrying forward the
promise made in my earlier post I am writing here how to analyze the extent of
fragmentation an index is having and how to rebuild an index in case that is
required. 1.  Analyzing the extent of index ...
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Database Tuning – Indexes
Hi Guys, after a quite long time I am posting this article today, this post is more of into database  tuning and in this I have elaborated following things. 1. What are indexes in databases? Indexes are special lookup tables that the database search engine ...
Database Tuning – Indexes
Database Tuning – Indexes
performancetestingcentre.blogspot.com
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Elance Java Test Questions
Question1. Analyze the following code snippet.
What will be the output of this code? <html> <body> <script type=”text/javascript”> var str = “The drain of the plane is plain”; var patt1 =/ain/g; document.write(str.match(patt1 )); </script> </body> </html> a...
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