You can downgrade encrypted columns from version 15.0.2 to version 15.0 or 15.0.1. Adaptive Server versions 15.0 GA and 15.0 ESD #1 did not support encrypted columns, so downgrading to either of these versions requires that you remove all encryption from your databases. Versions 15.0 ESD #2 and later and 15.0.1 supported encrypted columns, and downgrade to these versions requires just that you remove the 15.0.2 encrypted columns functionality from your databases.
If Adaptive Server was never configured for encrypted
columns, you do not need to perform any steps described in this
section as preparation to downgrade Adaptive Server version 15.0.2
to to15.0 or 15.0 ESD#1.
