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Datapump 19c upgrade

edited May 29, 2020 10:33AM in Database Utilities (MOSC) 12 commentsAnswered

Hi,

I'm looking to upgrade to 12c database to 19c with latest release update, the application has 630 schemas,

As per application vendor recommendation, the database upgrade should ONLY be done through EXPDP/IMPDP,

In our test upgrade,

i've taken export of 50 schemas  of size 8 GB at a time, for which it took about 12 hours for the export on 12.1.0.2 version and in between there are these following errors,

ORA-31693: Table data object "TABLE_NAME" failed to load/unload and is being skipped due to error:

ORA-02354: error in exporting/importing data

ORA-01555: snapshot too old: rollback segment number 9 with name "_SYSSMU9_648612036$" too small

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