How to make user define ID field in form make it unique [closed]

How to make user define ID field in form make it unique [closed]

References

Reference NO 1

http://www.pioneerb1.com/wp-content/uploads/2012/06/How-to-Create-User-Defined-Fields-and-Tables.pdf

Reference NO 2

http://docs.oracle.com/cd/E27559_01/admin.1112/e27149/customattr.htm

Reference NO 3

http://support.microsoft.com/kb/185050

Reference NO 4

https://www.autotask.net/Help/Content/AdminSetup/SiteSetup/UDFadd.htm

Reference NO 5

http://service.boyum-it.com/uploads/media/02_-_Move_Userdefined_Field_onto_the_main_window.pdf

Reference NO 6

https://confluence.atlassian.com/display/JIRA/Adding+a+Custom+Field

Reference NO 7

http://indesignsecrets.com/the-holy-grail-has-been-found-create-forms-fields-in-indesign.php

Reference NO 8

http://www.michellgroup.com/images/pdf/bl%20howto_udobjects_882.pdf