Audit Trail in Oracle

shabbir's Avatar author of Audit Trail in Oracle
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This is an article on Audit Trail in Oracle in Oracle.
I would be doing this in a new user and so first you need to have the administrative priviledges to create new user. By default the Scott user does not have the priviledges and you need to login using the System user.

Create New User In Oracle
Code: SQL
CREATE User <UserName> IDENTIFIED BY ;
grant him necessary priviledges
Code: SQL
GRANT CREATE session TO <username>;
 
 GRANT CREATE TABLE TO <username>;
 
 GRANT CREATE TRIGGER TO <username>;
 
 ALTER USER <username> QUOTA UNLIMITED ON
<tablespace> is normally 'SYSTEM'

Now create the tables

Code: SQL
CREATE TABLE Details (
    RegNo varchar (50) NOT NULL ,
    RegYear varchar (4) NOT NULL ,
    FullName varchar (50) NOT NULL ,
    FathersName varchar (50) NOT NULL ,
    Location varchar (250) NOT NULL ,
    Village varchar (250) NOT NULL ,
    PresentAdd varchar (500) NOT NULL ,
    CreatedBy varchar (50) NOT NULL ,
    DateCreated date NOT NULL ,
    UpdatedBy varchar (50) NULL ,
   DateUpdated date NULL,
   PRIMARY KEY (RegNo,RegYear)
 );
 
 CREATE TABLE LogDetails (
   LogType varchar (50) NULL ,
   RegNo varchar (50) NOT NULL ,
   RegYear varchar (4) NOT NULL ,
   FullName varchar (50) NOT NULL ,
   FathersName varchar (50) NOT NULL ,
   Location varchar (250) NOT NULL ,
   Village varchar (250) NOT NULL ,
   PresentAdd varchar (500) NOT NULL ,
   CreatedBy varchar (50) NOT NULL ,
   DateCreated date NOT NULL ,
   UpdatedBy varchar (50) NULL ,
   DateUpdated date NULL
 );
Now create the trigger

Update Trigger
Code: SQL
CREATE OR REPLACE TRIGGER AuditTrailUpdate
  AFTER UPDATE ON Details
  REFERENCING OLD AS myRow
  FOR EACH ROW
    INSERT INTO LogDetails(
    LogType,
    RegNo,
    RegYear,
    FullName,
    FathersName,
    Location,
    Village,
    PresentAdd,
    CreatedBy,
    DateCreated,
    UpdatedBy,
    DateUpdated
    )
    VALUES(
    'updated',
    :myRow.RegNo,
    :myRow.RegYear,
    :myRow.FullName,
    :myRow.FathersName,
    :myRow.Location,
    :myRow.Village,
    :myRow.PresentAdd,
    :myRow.CreatedBy,
    :myRow.DateCreated,
    :myRow.UpdatedBy,
    :myRow.DateUpdated
    )
/
Delete Trigger
Code: SQL
CREATE OR REPLACE TRIGGER AuditTrailDelete
  AFTER DELETE ON Details
  REFERENCING OLD AS myRow
  FOR EACH ROW
    INSERT INTO LogDetails(
    LogType,
    RegNo,
    RegYear,
    FullName,
    FathersName,
    Location,
    Village,
    PresentAdd,
    CreatedBy,
    DateCreated,
    UpdatedBy,
    DateUpdated
    )
    VALUES(
    'deleted',
    :myRow.RegNo,
    :myRow.RegYear,
    :myRow.FullName,
    :myRow.FathersName,
    :myRow.Location,
    :myRow.Village,
    :myRow.PresentAdd,
    :myRow.CreatedBy,
    :myRow.DateCreated,
    :myRow.UpdatedBy,
    :myRow.DateUpdated
    )
/
Team Leader
16May2006,14:46   #2
pradeep's Avatar
Wonderful way to log table modifications. I wonder whether its possible to log the username which was used to do the modification, that would be really helpful.
rameshd9 likes this
Go4Expert Founder
16May2006,22:31   #3
shabbir's Avatar
By just using the dual table you can get the details about the Meta data about the user like his username and log that.
Newbie Member
17Dec2007,23:31   #4
jessemeister's Avatar
Is there any way you can audit a user by creating a procedure instead when audit_trail is disabled?

How can one write a procedure with username, logon_time and once there is a username already there when run by the second time, not be displayed only new users who logged on to Banner? Can you please advice/help me on this. Thank you
Contributor
26Feb2008,17:48   #5
lead.smart34's Avatar
Quote:
Originally Posted by jessemeister
Is there any way you can audit a user by creating a procedure instead when audit_trail is disabled?

How can one write a procedure with username, logon_time and once there is a username already there when run by the second time, not be displayed only new users who logged on to Banner? Can you please advice/help me on this. Thank you
www.oracle-base.com/articles/8i/Auditing.php
Newbie Member
8Jan2009,21:33   #6
game's Avatar
Hi!

Thanks for the info.
I was wondering if there is a way to pass external parameters to the triggers you showed in example.This is because I would like these external parameters (example some application id ) to appear in the audit trail as well.

Also if the above isn't possible , what other approach could I follow?

Thanks;
Labhesh.
Newbie Member
22Oct2010,16:00   #7
Night club's Avatar
The auditor held in main orecle all the form and feel its correct way,