which changes are referred to undesirable changes?
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the changes which are not desired to change is called undesirable changes example earthquake hurricane tsunamis
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Staging table is a temporary table that is used to stage the data for temporary purpose just before loading it to the Target table from the Source Table. As the data resides temporarily, you can do various stuff on that data like:
De-dupingCleansingNormalizing to multiple tablesDe-Normalizing from multiple to a single table.
De-dupingCleansingNormalizing to multiple tablesDe-Normalizing from multiple to a single table.
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