WordPress is driven by a MySQL database which makes updating content cake once in the database. All of the WordPress data such as posts, comments, categories, and settings are stored within the MySQL database.
If you needed to change some information site wide, going through each and every record would prove a very time consuming task and also be prone to human error. By executing a SQL query against your WordPress database however, you can make the necessary changes quickly and efficiently.
We will show some SQL queries that can be of great assistance to you when using WordPress.
Continue reading 11 Useful WordPress SQL Hacks For Maintaining Your Blog