speeding up select query using parallel processing

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speeding up select query using parallel processing



I am running a simple select query to fetch all the values from the table and writing the resultset into CSV file using Java code. My select query is similar to below


select * from <tablename>



This table contains data for the past 3 years. One of the ways that I was thinking of speeding up the process is to run a separate thread thereby spinning up 36 threads , each querying 1 month worth of data ( after making sure db can handle 36 connections) and aggregating the result into a single file.



Is there any library within java or oracle function that helps in achieving the same by querying the data in parallel and aggregating the result set.









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