If a transaction does not modify the database until it has committed, it is said to use the ___________ technique.

If a transaction does not modify the database until it has committed, it is said to use the ___________ technique. Correct Answer Deferred-modification

Deferred modification has the overhead that transactions need to make local copies of all updated data items; further, if a transaction reads a data item that it has updated, it must read the value from its local copy.
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If a transaction does not modify the database until it has committed it is said to use a _______ modification technique
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