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Postsdbo
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    <p>I would think that your data model will depend upon what information you need to report on. For example, I would be inclined to have the standard <code>EMPLOYEE</code> and <code>DEPARTMENT</code> tables (like the Oracle default <code>SCOTT</code> schema).</p> <p>I would also have a status column where you could denote an employee is a current employee or a prospective employee thereby allowing you to report on current hires and forecast hires. You could add functional constraints/business rules around what columns are required depending upon the status of the employee etc. so current employees would have full names, DOB etc whereas prospective employees might not.</p> <p>I would also then create an audit table to track the changes the <code>EMPLOYEE</code> record undergoes. This would allow you to retrospectively find their department changes and when the record employee changed from a prospective to current employee etc. as awell as any changes to other data within the <code>EMPLOYEE</code> record.<br /> It would also have the advantage of keeping all your data in one location. You could also consider partitioning the <code>EMPLOYEE</code> table using the status column if needed.</p> <p>This would give you the benefit of only ever issuing a single ID to each employee throughout their process through the various stages of employment in your application.</p> <p>Another benefit of the status column is that you could then introduce any other stages an employee could go through as needed in the future.</p> <p><strong>EDIT:</strong></p> <p>This would also ensure that if you needed to add columns in the future as you mentioned, you only have to support one table structure.</p>
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    1. POHow to design a data model that deals with the current employees and forecasted employees?
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    1. USOllie
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    1. COPlease see I have updated my question.
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      1. USashishjmeshram
 

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