Title: WordPress database error:
Last modified: August 18, 2016

---

# WordPress database error:

 *  [vshare](https://wordpress.org/support/users/vshare/)
 * (@vshare)
 * [18 years, 6 months ago](https://wordpress.org/support/topic/wordpress-database-error-9/)
 * i recently installed wp 2.3.
    after sucessful installation, getting this error
 *     ```
       WordPress database error: [Table 'mydatabase.wp_categories' doesn't exist]
       SELECT cat_id, cat_name FROM wp_categories WHERE link_count!='0'
       ```
   
 * on the sidebar

Viewing 6 replies - 1 through 6 (of 6 total)

 *  [Jeremy Clark](https://wordpress.org/support/users/jeremyclark13/)
 * (@jeremyclark13)
 * [18 years, 6 months ago](https://wordpress.org/support/topic/wordpress-database-error-9/#post-626558)
 * Most likely your theme isn’t compatible with the new version. Switch to the default
   theme and try again.
 *  Thread Starter [vshare](https://wordpress.org/support/users/vshare/)
 * (@vshare)
 * [18 years, 6 months ago](https://wordpress.org/support/topic/wordpress-database-error-9/#post-626593)
 * Any suggestion on how to fix this problem in my template?
 *  [Jeremy Clark](https://wordpress.org/support/users/jeremyclark13/)
 * (@jeremyclark13)
 * [18 years, 6 months ago](https://wordpress.org/support/topic/wordpress-database-error-9/#post-626596)
 * Without actually seeing your site or at least knowing what theme your using it’s
   impossible.
 *  Thread Starter [vshare](https://wordpress.org/support/users/vshare/)
 * (@vshare)
 * [18 years, 6 months ago](https://wordpress.org/support/topic/wordpress-database-error-9/#post-626847)
 * it is probably not a problem with my theme…coz it is saying that table is missing.
   coz i got similar kind of errors in default theme also when importing old posts
 *  Thread Starter [vshare](https://wordpress.org/support/users/vshare/)
 * (@vshare)
 * [18 years, 6 months ago](https://wordpress.org/support/topic/wordpress-database-error-9/#post-626865)
 * i also checked my mysql databse, there is no table called
 * wp_categories
 *  [Jeremy Clark](https://wordpress.org/support/users/jeremyclark13/)
 * (@jeremyclark13)
 * [18 years, 6 months ago](https://wordpress.org/support/topic/wordpress-database-error-9/#post-626874)
 * Because in the upgrade to 2.3 the database schema changed and that table was 
   replace with taxonomy tables. Try the default theme and see if you still getting
   errors. Also check these out.
    [http://codex.wordpress.org/Plugins/Plugin_Compatibility/2.3](http://codex.wordpress.org/Plugins/Plugin_Compatibility/2.3)
   [http://codex.wordpress.org/Themes/Theme_Compatibility/2.3](http://codex.wordpress.org/Themes/Theme_Compatibility/2.3)

Viewing 6 replies - 1 through 6 (of 6 total)

The topic ‘WordPress database error:’ is closed to new replies.

## Tags

 * [categories](https://wordpress.org/support/topic-tag/categories/)
 * [database](https://wordpress.org/support/topic-tag/database/)
 * [exist](https://wordpress.org/support/topic-tag/exist/)
 * [installation](https://wordpress.org/support/topic-tag/installation/)

 * In: [Installing WordPress](https://wordpress.org/support/forum/installation/)
 * 6 replies
 * 2 participants
 * Last reply from: [Jeremy Clark](https://wordpress.org/support/users/jeremyclark13/)
 * Last activity: [18 years, 6 months ago](https://wordpress.org/support/topic/wordpress-database-error-9/#post-626874)
 * Status: not resolved

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