Title: notification: A required database table is missing.
Last modified: August 20, 2016

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# notification: A required database table is missing.

 *  Resolved [jannee21](https://wordpress.org/support/users/jannee21/)
 * (@jannee21)
 * [13 years, 5 months ago](https://wordpress.org/support/topic/notification-a-required-database-table-is-missing/)
 * after upgrading to Version 2.5.4, appeared
      message: A required database table
   is missing. Please run the following sql command on your database server to create
   the missing table. CREATE TABLE wp_PO_groups (group_id bigint(20) unsigned NOT
   NULL AUTO_INCREMENT, group_name varchar(255) NOT NULL default ”, group_members
   longtext NOT NULL, PRIMARY KEY PO_group_id (group_id));
 * A required database table is missing. Please run the following sql command on
   your database server to create the missing table.
    CREATE TABLE wp_PO_post_plugins(
   post_id bigint(20) unsigned NOT NULL, permalink longtext NOT NULL, disabled_plugins
   longtext NOT NULL, enabled_plugins longtext NOT NULL, PRIMARY KEY PO_post_id (
   post_id));
 * A required database table is missing. Please run the following sql command on
   your database server to create the missing table.
    CREATE TABLE wp_PO_url_plugins(
   url_id bigint(20) unsigned NOT NULL auto_increment, permalink longtext NOT NULL,
   children int(1) NOT NULL default 0, disabled_plugins longtext NOT NULL, enabled_plugins
   longtext NOT NULL, PRIMARY KEY PO_id (url_id));
 * I run these queries, but I get the answer: Table already exists.
 * [http://wordpress.org/extend/plugins/plugin-organizer/](http://wordpress.org/extend/plugins/plugin-organizer/)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [Jeff Sterup](https://wordpress.org/support/users/foomagoo/)
 * (@foomagoo)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/notification-a-required-database-table-is-missing/#post-3286459)
 * What do you get when you run the following command on your database?
 * SHOW TABLES LIKE ‘wp_PO_url_plugins’
 *  Plugin Author [Jeff Sterup](https://wordpress.org/support/users/foomagoo/)
 * (@foomagoo)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/notification-a-required-database-table-is-missing/#post-3286461)
 * Update to version 2.5.5 to see if you still get the error message. There was 
   a problem where mysql running on windows returned the table names in lower case
   which is different than linux.
 *  Thread Starter [jannee21](https://wordpress.org/support/users/jannee21/)
 * (@jannee21)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/notification-a-required-database-table-is-missing/#post-3286474)
 * after the command SHOW TABLES LIKE ‘wp_PO_url_plugins’
    I get an answer,that 
   the request has been executed successfully: Tables wp_po_url_plugins Thank you!
   After the upgrade to version 2.5.5 , the error message disappears.Your plugin
   is very good and helped me greatly
 *  Plugin Author [Jeff Sterup](https://wordpress.org/support/users/foomagoo/)
 * (@foomagoo)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/notification-a-required-database-table-is-missing/#post-3286475)
 * NP. Just a difference in the windows world where the table name is all lowercase
   even if it was created with uppercase.

Viewing 4 replies - 1 through 4 (of 4 total)

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 * 4 replies
 * 2 participants
 * Last reply from: [Jeff Sterup](https://wordpress.org/support/users/foomagoo/)
 * Last activity: [13 years, 4 months ago](https://wordpress.org/support/topic/notification-a-required-database-table-is-missing/#post-3286475)
 * Status: resolved