Script for Database URL migration in WordPress

When we need to migrate our WordPress from a URL to another, it’s necessary to make changes in our database, for this you will find below an automatically generated script, where you only need to enter the prefix of the database (by default is wp) and place the old URL and the new URL.

The generated script can be entered directly into your phpmyadmin within SQL and run it.

phpmyadmin

Or from the mysql console directly

username@[~/Desktop]: mysql -u root -p databasename
Enter password:
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 892
Server version: 5.5.13 MySQL Community Server (GPL)

Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql> UPDATE wp_options SET option_value = replace(option_value, 'http://www.oldurl', 'http://www.newurl') WHERE option_name = 'home' OR option_name = 'siteurl';
Query OK, 0 rows affected (0.00 sec)
Rows matched: 2 Changed: 0 Warnings: 0

mysql> UPDATE wp_posts SET guid = replace(guid, 'http://www.oldurl','http://www.newurl');
Query OK, 0 rows affected (0.02 sec)
Rows matched: 964 Changed: 0 Warnings: 0

mysql> UPDATE wp_posts SET post_content = replace(post_content, 'http://www.oldurl', 'http://www.newurl');
Query OK, 0 rows affected (0.05 sec)
Rows matched: 964 Changed: 0 Warnings: 0

mysql> UPDATE wp_postmeta SET meta_value = replace(meta_value,'http://www.oldurl','http://www.newurl');g
Query OK, 0 rows affected (0.01 sec)
Rows matched: 686 Changed: 0 Warnings: 0

Serialized Data

Sometimes we have problems caused by serialized data, which could encrypt URL within a PHP array. With the change of the base URL, these data may be lost. There are scripts, more advanced, to make such changes.

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