Checking Old Versions Of Tables Via Oracle Database Flashback Queries

 Sometimes in production servers, you might need to check specific record(s) in order get older versions. Oracle has Flashback technology to revert your datas to a specific SCN or timestamp. In order to use it, Flashback option should be enabled. After enabling, Oracle will start to save tables at specific times.

select * from <table_name> as of timestamp(sysdate - interval '10' minute)

The query above shows you the table's older version. You can also narrow results with WHERE clause:

select * from <table_name> as of timestamp(sysdate - interval '10' minute) where proc_id=3843


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