在12c數據庫中，哪種audit trail 受到支持？
來源於：What Audit Trail Types Are Supported For A 12c Database? (文檔 ID 1986609.1)
適用於：
Oracle Audit Vault and Database Firewall - Version 12.1.2.0 and later
Information in this document applies to any platform.
目標：
在12c數據庫中，哪種audit trail 受到支持？
解決方案：
當使用非pdb時，所有的trail 類型都收到支持
當使用pdb時，僅有table 和directory trail 受到支持。
事務日志 trail 在12c pdb中不工作
The following documentation bug was raised to have this stated clearly in the documentation.
Bug 20649231 - SUPPORT FOR DIRECTORY AUDIT TRAIL NOT MENTIONED IN AVDF ADMIN GUIDE has been logged to update the documentation
