The second paragraph of the section “Creating an Oracle database” in the Preparing to Install LiveCycle ES guide makes the following statement:
?You must create your Oracle database to support UTF-8 characters. Ensure that the database character set is Unicode (AL32UTF8). Ensure that the database setting NLS_LENGTH_SEMANTIC is set to BYTE ? database initialization will fail if you set any other value. You must use the transaction processing template when creating the database.?