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Your WordPress database is the control center for your entire site because all of your information is stored there. Some people may try to hack your site if they know the database name. In this video, we will show you how to change the WordPress database prefix to improve your site’s security.
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Text version of this tutorial:
http://www.wpbeginner.com/wp-tutorials/how-to-change-the-wordpress-database-prefix-to-improve-security/
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Summary of this Tutorial:
Start by making a backup of your database.
Then go to your root directory and fid wp-config.php
Look for the table prefix and change it to something different
Now go to phpmyadmin and change the table names
Either click each table or copy the code below to update all of your tables.
RENAME table `wp_commentmeta` TO `wp_a123456_commentmeta`;
RENAME table `wp_comments` TO `wp_a123456_comments`;
RENAME table `wp_links` TO `wp_a123456_links`;
RENAME table `wp_options` TO `wp_a123456_options`;
RENAME table `wp_postmeta` TO `wp_a123456_postmeta`;
RENAME table `wp_posts` TO `wp_a123456_posts`;
RENAME table `wp_terms` TO `wp_a123456_terms`;
RENAME table `wp_term_relationships` TO `wp_a123456_term_relationships`;
RENAME table `wp_term_taxonomy` TO `wp_a123456_term_taxonomy`;
RENAME table `wp_usermeta` TO `wp_a123456_usermeta`;
RENAME table `wp_users` TO `wp_a123456_users`;
You may need to edit tables created by any plugins.
Next query the option table and select everything with a name starting with wp_ using the query below.
SELECT * FROM `wp_a123456_options` WHERE `option_name` LIKE ‘%wp_%’
As well for the usermeta table with a meta_key using wp_ using the query below and change to your new prefix
SELECT * FROM `wp_a123456_usermeta` WHERE `meta_key` LIKE ‘%wp_%’
Related Links:
How to do a database backup
http://www.wpbeginner.com/beginners-guide/how-to-make-a-wordpress-database-backup-manually/
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