I can access my MySQL database using the command line option provided by vps provider. How do I change author ID or attribution on all wordpress blog posts in a single pass?
First, backup your wordpress database, enter:
mysqldump -u user -p blog-db-name-here > /path/to/backup/dir/blog.db.sql
Type the following shell command to connect to your blog database:
mysql -u user -p blog-db-name-here
OR
mysql -u user -h server.ip.here -p blog-db-name-here
Sample outputs:
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 15275063 Server version: 5.1.61-log Source distribution Copyright (c) 2000, 2011, 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.
Type the following command to list all authors IDs at mysql> prompt:
mysql> SELECT ID, display_name FROM wp_users;
Sample outputs:
+----+--------------+ | ID | display_name | +----+--------------+ | 1 | Vivek Gite | | 2 | nixcraft | +----+--------------+ 2 rows in set (0.04 sec)
In this output, I’ve two ID of the user. I’d like to change ID #2 (nixcraft) to ID #1 (Vivek Gite). In other words set post author to ID#1 for all posts where post author ID already set to ID#2. Type the following MySQL command:
mysql> UPDATE wp_posts SET post_author='1' WHERE post_author='2';
Sample outputs:
Query OK, 110 rows affected (0.13 sec) Rows matched: 110 Changed: 110 Warnings: 0
Quit the mysql, enter:
mysql> quit
You need to flush cached post by visiting your wp-content/cache/ directory and delete all the files. If you are using memcached type the following command to flush memcahed cache:
echo "flush_all" | nc 192.168.1.2 11211
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Nice web and nice posts, keep doing the good work, thank you.
Thank you Vivek! I had the exact need and this post saved my time like anything. Some how the bulk edit within WordPress was rendering the site unavailable for few mins even with small number of posts.