How to - extract query result set in CSV and make multiple files if result set is huge.

I have a query which returns millions of rows. I need to extract those rows in CSV files. Having said that i want to keep these files under a limit of 500 MB . Result set can be distributed among multiples files but each file can not be > 500 MB in size.
How to achieve this?

You may use this standard! procedure from Blushadow and produce something useful for your need. https://community.oracle.com/message/6499123#6499123

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How to - extract query result set in CSV and make multiple files if result set is huge.

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