ORA-00283: recovery session canceled due to errors ORA-16433: The database must be opened in read/write mode.
Probably you want to perform recovery with a greater oracle version than the original database.
Solution :: startup upgrade or open the instanc with the the same oracle software version
opt_estimate 2 - This is a note that was supposed to be a follow-up to an initial example of using the opt_estimate() hint to manipulate the optimizer’s statistical underst...
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