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Friday, 12 December 2014

DateTrack Feature in HRMS


Being an engineer i always had difficulty handling concept of ‘Date’. However through this article I would try to explain my understanding of DateTrack feature in Oracle Apps.

DateTrack adds the dimension of time to an application's database. It is a means of maintaining a history of changes to personnel records. The value of a DateTracked record depends on the date from which you are viewing the data. It applies to the People and Assignment details of a person’s record in Oracle HR. Each of the areas that are date tracked within a record are date tracked independently. 

We can ‘date track’ by setting an Effective Date. An effective date is the date at a particular point in time when a person’s record is effective. When you set an effective date for your work, DateTrack ensures that only information effective on that day is used for any processing, validation, inquiry and reporting you carry out. Let’s understand this in this simple diagram, which is considered as timeline of a personal record.


It shows how the person’s Status has changed over time to reflect their changing circumstances. As the changes are made in Oracle, the system keeps a record of each change. These records can be thought of as different slices – or different pages in a file that show each change. Date tracking allows you to visit each slice or page at any time. If you set the effective date to 17 July 2001, the record would show that this individual is married. Reset back to today and the marital status would show as divorced.


Take another example for employee Assignment. In this example the assignment record shows how this person’s Position changes over time. When this person originally started in company, their position was Programmer 1. Over time his position gets changed and Oracle keeps maintaining the history of this. In addition, this individual has been told that they have a new position which will take effect as of the 01-Jan-2008. Using date tracking you can record that this position change will take effect in advance of it happening – simply by setting the Effective Date to 01 Jan 2008 and making the change. Until that date actually arrives, the position will still show as the current one.

To control these date tracking rows, every DateTracked table must include these columns:
  • EFFECTIVE_START_DATE DATE NOT NULL
  • EFFECTIVE_END_DATE DATE NOT NULL
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