What we do is the following:

Import the extract to a staging table and calculate a hash (sha-256) there. That hash along with the primary keys (things change if the keys can be null of course) are used in a T-Sql merge statement in our primary warehouse, so we are only updating/touching rows that actually have a changed value in them in addition to inserting new rows.

I can elaborate further if you have a need.

-Dave

I don't know about a use case, its just how we handle importing the extracted PVO datasets into our local copy.

to elaborate:

Let's pick a relatively simply pvo FscmTopModelAM.FinExtractAM.GlBiccExtractAM.BalanceExtractPVO

we import that data every 2 hours by grabbing the csv/pecsv files off the ucm.

For each csv file, we import that to a staging table with automatically calculated a sha-256 hash for the tow. After the data is loaded to that staging table, we run a merge stored procedure, which looks something like

MERGE DataWarehouse.Oracle.FscmTopModelAM_FinExtractAM_GlBiccExtractAM_BalanceExtractPVO t
USING
(
SELECT *
FROM #TempFscmTopModelAM_FinExtractAM_GlBiccExtractAM_BalanceExtractPVO_Data
) s
ON (
t.BalanceCurrencyCode = s.BalanceCurrencyCode
AND t.BalanceLedgerId = s.BalanceLedgerId
AND t.BalanceActualFlag = s.BalanceActualFlag
AND t.BalancePeriodName = s.BalancePeriodName
AND ((t.BalanceTranslatedFlag = s.BalanceTranslatedFlag) OR (t.BalanceTranslatedFlag IS NULL AND s.BalanceTranslatedFlag IS NULL))
AND t.BalanceCodeCombinationId = s.BalanceCodeCombinationId
)
WHEN MATCHED AND t.RowHash <> s.RowHash THEN
UPDATE SET t.BalanceProjectToDateDrBeq = s.BalanceProjectToDateDrBeq

That way if the data hasn't changed, we don't actually update the record.

This one is a little odd in that one of the "keys" can be null, but the principle is the same for the 200+ pvo's and BIP reports we import on a daily basis, not to mention all the other imports we run.

we don't do anything special for BIP report extractions, they run the exact same way. all the hash values are done on the local database side, not the cloud.

we literally have all of the metadata for a report or a pvo in a table and simply generate tables and stored procedures to handle the mergers (along with some index work). the hash values are generated and persisted in sql within the staging tables, and they are stored on a row-by-row basis in the warehouse for comparison.

Considering the volume of data we process on a daily basis from oracle alone, its fairly efficient. I don't know what the use case if for the OP's need, but I would think something similar could be done. Trying to manage an extract and a secondary report to ensure you get the same dataset values would imo be a frustrating exercise. Generate the hash based on the data you actually have in hand.