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Best practice to migrate database upgrade on dataguard group?

edited Dec 5, 2019 9:35AM in Database Backup and Recovery (MOSC) 3 commentsAnswered ✓

Hi,

I've been asked for a migration on a legacy Oracle 10g version. The idea is to convert the schema A to A', following this sequence:

-Machine 2 stops, dataguard is revoked.

-Machine 1 keeps making simple table operations (insert, delete, update)

-Machine 2 it's updated with new columns or tables, that (at first) do not require mandatory values, data transformation or newer dependencies.

-Then, machine 1 is stopped. The data between machine 2 shutdown and machine 1 shutdown are exported.

-Gap data are now imported on Machine 2's upgraded schema.

-Machine 1 gets its update using RMAN

-Dataguard is resumed.

So, my question is: what is the most elegant (or correct, if you prefer) solution to achieve this?

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