Solution to ORA-28113 VPD policy problems

Source: Internet
Author: User
An error was reported when a colleague gave feedback to the ORA-28113 and added a policy on a view. Oracle provides a method to determine policy issues
In the user_dump_dest directory, for example
User_dump_dest =/ora/ora101/database/admin/v101/udump

$ CD/ora/ora101/database/admin/v101/udump
$ LS-lt find the generated
-RW ---- 1 ora101 DBA 807 Oct 3 v101_ora_26963.trc

$ More v101_ora_26963.trc View content

* ** Session ID: (8.25) 10:18:45. 382
* ** 10:18:45. 381
-------------------------------------------------------------
Error information for ORA-28113:
Logon User: System
Table/View: Piet. EMP
Policy Name: piet_policy
Policy function: Piet. Fun
RLS predicate:
(Ename = sys_context ('userenv', 'session _ user ')
ORA-00907: missing right parenthesis

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