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Need to Calculate size of the data based on selection

PS SPMay 10 2021

Hi,
I would like to calculate data size from each table based on rows and columns, is there any way?
I know how to get the complete table size of based on segment type size. But based on column selection and number of rows would like to calculate the size.

This post has been answered by PS SP on May 11 2021

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Added on May 10 2021

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