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Which is the optimized method of extracting the data.
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Answer / pratap gangula
Delta loading is a way to extract data in a optimized way. Doing the incremental load by tracking the last update date or modified date makes the ETL processing faster.
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Answer / aswin
break-down the data into small chunks and try to process it...if it flatfile use unix to split the file
if it is oracle, use external table concept and load it into partitioned table using swap partition
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