How Oracle queries past records at a point in time (applied to a point-in-time error, rolled back to previous operations)

Source: Internet
Author: User
This function is in its own misoperation, will some data changes wrong, you want to restore the data before the change wrong, this time you can use this method but it is recommended to carefully change the data, if it is necessary to update, please back up the data table, not to be able to do so. SELECT * from A
SELECT * from a as of timestamp to_timestamp (' 2016-6-22 16:35:00 ', ' yyyy-mm-dd hh24:mi:ss '); "The statement is query 2016-6-22 16:35:00" This point in time before the data, if you need this time point of data, the search results to do a recovery. "But in the original inside I do not know very well, have time to see how the information is achieved."

How Oracle queries past records at a point in time (applied to a point-in-time error, rolled back to previous operations)

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