Database Install/Upgrade/Opatch (MOSC)

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Are there any issues with using a 19C listener for my 12C databases while upgrading?

edited May 26, 2021 4:54PM in Database Install/Upgrade/Opatch (MOSC) 5 commentsAnswered

On our server(Linux):

  • we have multiple test/development databases that are currently running under Oracle 12C
  • we have some new databases that are running on Oracle 19C
  • the intention is to gradually upgrade our 12C databases to 19C

Because we have some limitations around networking(firewall rules) we were running the 19C listener for all databases - both 12C and 19C.

We just started seeing an error related to UTL_FILE processing. The output file was previously produced fine (under 12C) but now we are seeing some issues with the file - we are seeing some errors and the produced files seem to have an extra line in them that when viewed in vi editor looks like ^U (control U).

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