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db file scattered read, latch free, db file sequential read

Posted on 2011-03-08
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Hello,

I try to understand why some queries hang because there are some events db file scattered read, latch free, db file sequential read.
How can I resolve this problem, please?

Thanks

Regards

Bibi
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Question by:bibi92
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slightwv (䄆 Netminder) earned 2000 total points
ID: 35073661
Define 'hang' or are you just seeing the 'wait' events?  All Oracle queries 'wait'.  That by itself isn't an issue.

Are you tracing specific SQL and seeing high wait events that are becoming a performance issue?
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by:bibi92
ID: 35081334
Thanks regards bibi
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