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Chapter 11 Oracle Fine Grained Auditing

Then create the context:

create context claim_app_ctx
using set_claim_app_ctx
/

The application can call the procedures to set the values:

set_claim_app_ctx(‘domain_name’,’PROLIGENCE.COM’)
set_claim_app_ctx(‘app_username’,’ANAN’)
set_claim_app_ctx(‘web_server’,’ws-01.proligence.com’)

Inside our customer audit handler procedure fga_auditor, described earlier in this chapter, we can retrieve these values by issuing

sys_context(‘claim_app_ctx’,’domain_name’)
sys_context(‘claim_app_ctx’,’app_username’)
sys_context(‘claim_app_ctx’,’web_server’)

which can then be placed in appropriate columns in the custom audit table fga_audit_log. If needed, these can be encrypted, too.

FGA and Flashback Queries

Fine Grained Auditing shows us what query the user issued to select the data, but perhaps the more important question is what data was displayed to the user. Consider the following situation:  we have found out from the audit trails that a user has selected the claim amount from the claims table for a claim that was in INACTIVE status. The policy that is defined on claims of INACTIVE status enables the auditing when a user
 

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