MySQL is the database management system of WordPress, managing pages, posts, categories, comments, tags, users, custom fields, and other site options like URLs. You do not need to learn MySQL to use WordPress. You should, however, have a basic understanding of the database, as this will make managing the data
Database management is very important in website management as well as in any other computer applications used to capture and store data. Definition, creation, querying, updating and importantly, administration of the databases. Joomla is a big content management system that enables running of many websites in the best ways possible.