Title: UNIQUE fiel??
Last modified: August 21, 2016

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# UNIQUE fiel??

 *  Resolved [Valcomix](https://wordpress.org/support/users/valcomix/)
 * (@valcomix)
 * [12 years, 2 months ago](https://wordpress.org/support/topic/unique-fiel/)
 * Hi,
 *  I want to know how to make field as UNIQUE option.
 * Please let me know I need that.
 * [https://wordpress.org/plugins/register-plus-redux/](https://wordpress.org/plugins/register-plus-redux/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [radiok](https://wordpress.org/support/users/radiok/)
 * (@radiok)
 * [12 years, 2 months ago](https://wordpress.org/support/topic/unique-fiel/#post-4647781)
 * You cannot make a field enforce “uniqueness”. I assume by that you mean, user
   A put in “blah” for a custom field titled “Unique text”. user B could not put“
   blah” in when they register. That is not possible with this plugin. If you mean
   something else, please let me know.
 *  Thread Starter [Valcomix](https://wordpress.org/support/users/valcomix/)
 * (@valcomix)
 * [12 years, 2 months ago](https://wordpress.org/support/topic/unique-fiel/#post-4647788)
 * Ok because my member have to register with they Own *user member* and all member
   have unique user member. So if i have user member 9999 i dont want someone else
   try to register with the same number.
 * There is no way to set my extra field **user member** as UNIQUE on database? 
   I know all data is saved on wp_usermeta table but im sure there is a way to make
   my extra field UNIQUE even if i have to create an other table i will do it.
 * I realy need that.
 * thanks
 *  Plugin Author [radiok](https://wordpress.org/support/users/radiok/)
 * (@radiok)
 * [12 years, 2 months ago](https://wordpress.org/support/topic/unique-fiel/#post-4647789)
 * The data is not stored in a unique row in the database, so there is no way to
   use the database’s native unique checks. You will have to role your own code.
   Alternatively, you could enter all the known member numbers as invitation codes
   and allow only one user to use each invitation code. This could be problematic
   if you have thousands of members. Although a SQL statement could be used to import
   all known member numbers into the invitation code field in the database.

Viewing 3 replies - 1 through 3 (of 3 total)

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## Tags

 * [field](https://wordpress.org/support/topic-tag/field/)

 * 3 replies
 * 2 participants
 * Last reply from: [radiok](https://wordpress.org/support/users/radiok/)
 * Last activity: [12 years, 2 months ago](https://wordpress.org/support/topic/unique-fiel/#post-4647789)
 * Status: resolved