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Sep 5, 2012 · This suggests flashback table/database isn't available for Express Edition, but refers to 10g. This suggests it can be done from SQL Developer though. – Alex Poole
Jan 24, 2017 · Oracle does have the option to create restore points that you can then flashback the entire database to a point in time relatively quickly. That will undo the effects of all committed transactions (DML and DDL) between the creation of the restore point and the point where you issued the flashback command. Here is an example of creating and ...
Oct 7, 2009 · Just enable flashback database, create a guaranteed restore point, run your tests and flashback to the previously created restore point. The steps for this would be: Startup the instance in mount mode. startup force mount; Create the restore point. create restore point before_test guarantee flashback database; Open the database.
Jan 30, 2012 · The Flash player tried to write to a part of memory it does not have access to so the operating system prevented it and probably terminated the player. Could be a bug in the flash player, or a corrupted install (reinstall it) or it could be some failed attempt of the .swf that was loaded to infect your system (could be designed for windows).
Aug 22, 2015 · 1. You cannot "delete" data to rollback an update. Even if the only change that you'll do is set a flag from "NULL" to "Y" and vice versa, you can't really determine which value to update when you do multiple updates. update 1 : set from "NULL" to "0". update 2 : set from "0" to "something else".
Sep 20, 2014 · Flashback isn't the same as rollback, but no, it can't recover from a truncate and you can't do a flashback query past a truncate. It can recover from a drop table which might be the confusion. Perhaps you could quote and/or link to the sources for the two conflicting statements?
Jan 20, 2012 · If you COMMIT after the INSERT then the next transaction would begin with the DELETE and your ROLLBACK will only roll back the DELETE operation. Alternately, you can declare a savepoint after the INSERT and roll back to the savepoint. SQL> create table foo( col1 number ); Table created.
Nov 30, 2012 · 4. The key issue here is the sizing of the undo segments, and the undo retention and guarantee. The long and short of it is that you need your undo tablespace sized to hold all of the changes that can be made withing the maximum period that you want to flashback over, and you'd want to set the undo retention parameter to that value.
Dec 18, 2023 · and you enable flashback: shutdown immediate; startup mount; alter database archivelog; alter database open; alter system set db_recovery_file_dest_size = '10g'; alter system set db_recovery_file_dest = '/tmp' scope=both; alter database flashback on; create user c##test identified by "test"; grant all privileges to c##test;
Sep 26, 2008 · TRUNCATE is the DDL statement whereas DELETE is a DML statement. Below are the differences between the two: As TRUNCATE is a DDL (Data definition language) statement it does not require a commit to make the changes permanent. And this is the reason why rows deleted by truncate could not be rollbacked.
