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Need SQL statement for WordPress to fix WWW problem

My client started their WordPress website with a domain and hard-coded it to not have a "www." in front of the domain. Unfortunately, this caused problems on the local "windows domain" network in the office. The LAN technician said that the website had to be changed to include "www." we did, and now we need to adjust all the references to images and pages in the website that currently do not have a "www.".

Therefore, I am looking for one or more SQL statements that I can execute in MyPHPAdmin to change all references of "http://domain.com" to "http://www.mydomain.com". This would be in at least these two fields of the wp_posts table:
post_content
GUID
There might be other fields in this table and there might be other tables to modify, too. I am not sure.

I am not an expert on MySQL, so I am not sure how to formulate the SQL statements. I am also not expert enough in WordPRess to know if there are other fields and tables to search through or not.

Thank you.
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Lev Seltzer
Asked:
Lev Seltzer
2 Solutions
 
mankowitzCommented:
The first thing I would try is to edit your routing table so that all queries to http://domain.com are forwarded to http://www.domain.com. For example, in .htaccess for the www.domain.com site, put in this.
Redirect 301 / http://domain.com/

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If that's not possible, then you will want a query like this:
UPDATE wp_posts set post_content = replace(post_content, 'http://domain.com', 'http://www.mydomain.com')

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Tom BeckCommented:
I had a similar problem and used PhpMyAdmin's search feature. Search "http://www" or something similar and it will tell you how many instances where found in each table in the database. Aside from wp_posts, you will likely find instances in wp_postmeta and wp_options. Then you can use a statement like @mankowitz suggested on each table.
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Lev SeltzerAuthor Commented:
I managed to replace the domain name in the wp_posts, wp-postmeta and wp_options files. Thank you both for your quick and accurate replies.
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