VPD policy metadata

The Oracle Server maintains the association information between the security policies and schema objects in data dictionary views. The data dictionaries available for this information is USER_DEPENDENCIES, ALL_DEPENDENCIES, and DBA_DEPENDENCIES. The structure of the dictionary view is as follows:

SQL> DESC USER_POLICIES

  Name                      Null?      Type
  -------------------------------------------------
  OBJECT_NAME               NOT NULL   VARCHAR2(30)
  POLICY_GROUP              NOT NULL   VARCHAR2(30)
  POLICY_NAME               NOT NULL   VARCHAR2(30)
  PF_OWNER                  NOT NULL   VARCHAR2(30)
  PACKAGE                              VARCHAR2(30)
  FUNCTION                  NOT NULL   VARCHAR2(30)
  SEL                                  VARCHAR2(3)
  INS                                  VARCHAR2(3)
  UPD                                  VARCHAR2(3)
  DEL                                  VARCHAR2(3)
  IDX                                  VARCHAR2...