Accessing the insert statement which triggers a trigger inside the trigger’s body

oracle

I have some table and I have enabled auditing on this table. Currently, I am collecting the data about who has inserted records and at what time. Now I also want to log what was the exact query he/she used to insert the record. I created a trigger which at present only logs the user and date to audit data collection table. This is code to the trigger:

create or replace trigger auditer
after insert on user01.sometab
for each row
insert into sys.auditlogs values(user,sysdate)

How can I use the same trigger to access the insert statement and insert that statement into the audit table? Is it even possible?

Best Answer

You can meet all your requirements with Standard Database Auditing or with Fine-Grained Auditing.

For the standard auditing to also capture the SQL statements, you would set AUDIT_TRAIL initialization parameter to DB,EXTENDED or XML,EXTENDED (See "Settings for the AUDIT_TRAIL Initialization Parameter" in Database Security Guide). The audit records would include timestamps and SQL text, and could be queried from SYS.AUD$ table if AUDIT_TRAIL value is set to DB,EXTENDED or DB, or read from OS files if AUDIT_TRAIL is set to XML,EXTENDED or XML. In the latter case you can determine where the audit files are located based on the value of the initialization parameter AUDIT_FILE_DEST:

SQL> show parameter audit

NAME                 TYPE        VALUE
-------------------- ----------- ------------------------------
audit_file_dest      string      /u01/app/oracle/admin/orcl/adump

As far as FGA is concerned, I have already described it in my other post here. You would just need to set the other value for the audit_trail parameter when creating the FGA with DBMS_FGA.ADD_POLICY procedure, e. g. DBMS_FGA.DB_EXTENDED.

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