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I have a table with symbol, epoch and Volume. The epoch is stored based on Symbol and Epoch in ascending order.

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I want to get cumulative volume which is sum of volume and prev timestamp and the volume at current timestamp for the same day and for same symbol.

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I am new to SQL and this already seems to be quite complicated. Pls help.

1 Answer 1

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Try using over clause. Over Clause Documentation

Select Symbol,
       Epoch,
       Volume,
       Sum(Volume)Over(Partition by Symbol,Substring(Epoch,1,6) Order by Epoch) AS CuVol
From YourTableName
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