APPL_TOP character set vs Database character set
We're in the process of upgrading from 11.5.10.2 to 12.1.3. Our current database character set is US7ASCII (nlslang = WE8ISO8859P1). I wanted to know if AL32UTF8 is a strict superset of US7ASCII and if so if it is possible to run Rapid Install and change the application tier character set to AL32UTF8 but leave the database at US7ASCII for a while or if the database would need to be converted right away, too. By a while, I mean until sometime after the upgrade to R12 has completed.
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