Oracle Solution for Error ora-39702
ORA-39702: database not open for UPGRADE or DOWNGRADE
What triggered the Error:
An upgrade, downgrade, reload, or patch script was invoked when the database was not open for UPGRADE or DOWNGRADE.
What should we do to fix it:
Use STARTUP UPGRADE to open the database for upgrade or to apply a patch set. Use STARTUP DOWNGRADE for running a downgrade script or the reload script.