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Oracle Database 11g new feature – Automatic Memory Management
Automatic Memory Management was a new feature introduced in 10g. With 10g release oracle has come up with anew parameter called sga_target which was used to automatically manage the memeory inside SGA....
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Wait Statistics in Oracle 10g
When a SQL is submitted by a user to Oracle database, it never happens that Oracle will execute the SQL continuously at one go. Oracle process never get to work on the execution of statement without...
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Tuning PGA memory in Oracle10g
Checking PGA for each sessions You can check session level PGA using V$SESSTAT and V$SESSION view and also you can check the username, who is using that memory. SELECT s.value,s.sid,a.username FROM...
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Wait event Read by other session or Buffer busy
Dear friends, Today I saw AWR report Top 5 time wait events. I saw one wait event “read by other session “. Read by other session wait event & Buffer busy wait event are same. Oracle 9i we...
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How to write / tune SQL Queries for better performance
Note: One of our visitors and my friend Kavita Yadav asked this question by posting a comment. Thanks KAvita for your contribution. Keep visiting/commenting! Performance of the SQL queries of an...
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Solving common Oracle Wait Events for performance tunning
Note: One of our visitors and my friend Kavita Yadav asked this question by posting a comment. Thanks KAvita for your contribution. Keep visiting/commenting! As there are over 800 wait events but but...
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