I am upgrading 10.2.0.3 to 10.2.0.5.
There are three databases. Two belonging to 10.2.0.3 home and belonging to 10.2.0.5 home.
The timezone for 10.2.0.3 database is 3. For 10.2.0.5 database is 4.
My question is : when I migrate the 10.2.0.3 database to 10.2.0.5,would the time zone automatiacally switch to 4 as there is another database with 10.2.0.5 home with timezone 4?
Or I have to take downtime for both 10.2.0.3 databases to apply patch for timezone ?