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How to change wordpress table prefix

NOTE: replace NEWPREFIX_ and OLDPREFIX_ with yours

Step 1

Change variable value of wp-config.php

  1. Login to your control panel or via FTP.
  2. Open File Manager under Files & Security.
  3. Locate the file wp-config.php and check the box to select it.
  4. Edit the wp-config.php.
  5. Locate the following entry:
    $table_prefix = 'OLDPREFIX_';
  6. Replace with new entry:
    $table_prefix = 'NEWPREFIX_';

Step 2

Update SQL database to change wordpress table prefix

  1. Open your database in PhpMyAdmin.
  2. Click on the database name in the menu to the left to unfold all tables.
  3. Select all tables that start with wp_; you should have 12 in total.
  4. Click With selected to open the drop-down menu and select Replace table prefix.
  5. Type in wp_ in the From-field, and the new name in the To-field, in this example, david_.
  6. Click Continue to make the change.

phpmyadmin

Rename table

RENAME table `OLDPREFIX_commentmeta` TO `NEWPREFIX_commentmeta`;
RENAME table `OLDPREFIX_comments` TO `NEWPREFIX_comments`;
RENAME table `OLDPREFIX_links` TO `NEWPREFIX_links`;
RENAME table `OLDPREFIX_options` TO `NEWPREFIX_options`;
RENAME table `OLDPREFIX_postmeta` TO `NEWPREFIX_postmeta`;
RENAME table `OLDPREFIX_posts` TO `NEWPREFIX_posts`;
RENAME table `OLDPREFIX_terms` TO `NEWPREFIX_terms`;
RENAME table `OLDPREFIX_termmeta` TO `NEWPREFIX_termmeta`;
RENAME table `OLDPREFIX_term_relationships` TO `NEWPREFIX_term_relationships`;
RENAME table `OLDPREFIX_term_taxonomy` TO `NEWPREFIX_term_taxonomy`;
RENAME table `OLDPREFIX_usermeta` TO `NEWPREFIX_usermeta`;
RENAME table `OLDPREFIX_users` TO `NEWPREFIX_users`;

Update usermeta

update NEWPREFIX_usermeta set meta_key = 'NEWPREFIX_capabilities' where meta_key = 'OLDPREFIX_capabilities';
update NEWPREFIX_usermeta set meta_key = 'NEWPREFIX_user_level' where meta_key = 'OLDPREFIX_user_level';
update NEWPREFIX_usermeta set meta_key = 'NEWPREFIX_autosave_draft_ids' where meta_key = 'OLDPREFIX_autosave_draft_ids';
update NEWPREFIX_options set option_name = 'NEWPREFIX_user_roles' where option_name = 'OLDPREFIX_user_roles';