Title: WordPress Database
Last modified: April 5, 2019

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# WordPress Database

 *  [supernova42](https://wordpress.org/support/users/supernova42/)
 * (@supernova42)
 * [7 years, 1 month ago](https://wordpress.org/support/topic/wordpress-database-7/)
 * While changing the decimal points of a few of my fields within the wordpress 
   database, I noticed that fields previously defined within PDB then deleted still
   existed within the wordpress database along with the data. Surely these should
   be completely removed whenever I remove a field in PDB.
 * Thank you.

Viewing 1 replies (of 1 total)

 *  Plugin Author [xnau webdesign](https://wordpress.org/support/users/xnau/)
 * (@xnau)
 * [7 years, 1 month ago](https://wordpress.org/support/topic/wordpress-database-7/#post-11397220)
 * Columns in the main database are not deleted to prevent accidental data loss 
   when a field is deleted. If a field is deleted, the data can be restored by recreating
   the field with the same name.
 * Leaving the column in the database doesn’t affect performance because those columns
   will not be included when the data is loaded.
 * If you want to delete the column in the main database, you can do this manually.

Viewing 1 replies (of 1 total)

The topic ‘WordPress Database’ is closed to new replies.

 * ![](https://ps.w.org/participants-database/assets/icon-256x256.jpg?rev=1389807)
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 * 1 reply
 * 2 participants
 * Last reply from: [xnau webdesign](https://wordpress.org/support/users/xnau/)
 * Last activity: [7 years, 1 month ago](https://wordpress.org/support/topic/wordpress-database-7/#post-11397220)
 * Status: not resolved