You can use quiesce database when the database containing encrypted columns also contains the encryption key.
You must use with override to quiesce a database whose columns are encrypted with keys used in other databases.
quiesce database key_db, col_db is allowed, where key_db is the database with the encryption key and col_db is the database with a table that has a column encrypted with the key in key_db.
For example, the following commands will succeed where key_db contains the encryption key used to encrypt columns in col_db:
quiesce database key_tag hold key_db for external dump to “/tmp/keydb.dat” quiesce database encr_tag hold col_db for external dump to “/tmp/col.dat” with override quiesce database col_tag hold key_db, col_db for external dump to “/tmp/col.dat”