0
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1answer
265 views

What is the Difference between IN and Not IN performance wise?

I am new to database.I am having doubt that what is the difference between IN and NOT IN performance wise. When I am using IN, takes less time for the same query(Logically same query) when I use NOT ...
0
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2answers
1k views

oracle active sessions waiting for scheduler

Load on my 11g RAC looks like this: and I don't understand how to get insight into what this "scheduler" wait class is. It seems like "scheduler" that it refers to is the process that runs ...
4
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2answers
2k views

Hibernate Query Running Slow

I am currently facing a problem with a slow running Hibernate query that is being kicked off from a Java program. It is making a call to Oracle 11g at the back end. This query is taking anything from ...
1
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2answers
582 views

Performance tuning OLTP query

I have following sqls executed million times a day, single execution isnt an issue but executing million times causing some performance issues..Thanks in advance for your help! NOTE: data can change ...