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gudii9Flag for United States of America

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what is the use of direct=true option in sql loader

Hi,
I am loading the .csv files into oracle 10g using sqlloader using commands like

sqlldr schemaname/password@IPaddress:1521/orcl  contrlofilename_location.ctl ogfilename_location.log badfilename_location.log datafilenameLocation.csv

But for loading some of csv files( around 500 mb of data) it is taking around 4 hours. I read some where using direct=true reduces thes time. My question is does using direct=true option along with sqlloader removes some data? or does it has any side effects? what exactly does direct=true do. Any other easy ways to improve the performance of the load. Any ideas, links, resources, syntax, code highly appreciated. Thanks in advance
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fluglash

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thank you very much for your help. I appreciate it.