Way back I used following script to get valid sql to tune them in VPD on Oracle
Script output sql with VPD filters.
This procedure officially available in Oracle 12c on dbms_utility package.
Script credit goes to Jonathan Lewis.
Replace variable m_sql_in with your valid sql.
set linesize 70
set pagesize 0
set feedback off
m_sql_in clob :='select * from dba_synonyms where owner = ''TEST_USER''';
m_sql_out clob := empty_clob();
Sent from my IPhone
On Sep 13, 2017, at 1:32 PM, Tefft, Michael J <Michael.J.Tefft@xxxxxxxxxx>
Why not start with
AUDIT INSERT ON xxx WHENEVER NOT SUCCESSFUL;
AUDIT UPDATE ON xxx WHENEVER NOT SUCCESSFUL;
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Jack Applewhite
Sent: Tuesday, September 12, 2017 5:05 PM
Subject: Dynamically Add Error Logging To DML? VPD?
I use DBMS_ErrLog to create logging tables a LOT and really like this feature
for troubleshooting SQL. It works only if you can add the "Log Errors ..."
line at the end of your DML statement. We have a COTS application that
generates DML but is violating various table constraints. We can't nail down
the SQL or the rows it's trying to affect. We can't edit the DML to add the
"Log Errors..." line, so I was trying to figure out a way to do it
Just now I tried using VPD to add a predicate to any DML on a table and
sneakily tack on the "Log Errors..." line. The policy function returns this
for the predicate.
' 1=1 Log Errors Into <ErrLogTable> Reject Limit Unlimited '
I thought that, since the "Log Errors..." line is always tacked on the end of
the SQL, this might work. The function compiled and I created the policy,
both in Sys. When I ran an Insert that I knew would violate a table
constraint I got this error.
SQL Error: ORA-28113: policy predicate has error
28113. 00000 - "policy predicate has error"
*Cause: Policy function generates invalid predicate.
*Action: Review the trace file for detailed error information.
I found the trace file in bdump and saw that VPD adds the Where, then
encloses the predicate text in parentheses:
Insert .... WHERE (1 = 1 Log Errors Into <ErrLogTable> Reject Limit
ORA-00907: missing right parenthesis
Anyone know of a trick to get around this or other method to dynamically add
the "Log Errors..." line?
Jack C. Applewhite - Database Administrator
Austin I.S.D. - MIS Department
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