Using databases for the primary storage of content on your personal site is considered by some in the community to be an antipattern.
Common #CMS (e.g. WordPress, Drupal, MediaWiki, etc.) use databases for primary storage of content. Most often MySQL, sometimes others like MongoDB.
Databases are all a pain to maintain (i.e. highly human-time inefficient - see DBA tax below), and more fragile than the file system.
For any content you care about, don’t put the primary copy in a #database.