Restating a primary key to identify an employee

Posted by George on Stack Overflow See other posts from Stack Overflow or by George
Published on 2010-04-29T17:54:49Z Indexed on 2010/04/29 17:57 UTC
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database-design

Our company decided to designate a contractor by adding an "X" in front of the employee number. But they aren't doing this in all systems.

Is this a dangerous thing to do and why?

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Restating a primary key to identify an employee

database-design

Related posts about database-design

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