Pick the Delta Data From Specific Files or Tables

If I run the graph at 9 O'clock, it should pick the data with the latest updated timestamp records like from 8 to 9 O'clock updated records from the table. How to pick the delta data from specific files or tables?

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Babita Singha

  • Mar 30th, 2016
 

You can use ctime, mtime, atime function.
Eg find < search_dir > -ctime -1 => it will give you files created in less than 24 hours.

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You will definitely need a column in file or table which has the update timestamp. Based on timestamp you can simply filter the records using filter by expression

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