WordPress Database Structure — a practical guide to WordPress database tables with clear examples you can reuse in real projects.
WordPress Plugin Development Series (27/95). Prefer one article? Read the complete WordPress plugin development tutorial.
Short description
Understanding core schema helps you decide between post meta, custom tables, or taxonomies.
Core tables (common)
wp_posts / wp_postmeta
wp_users / wp_usermeta
wp_options
wp_terms / wp_term_taxonomy / wp_term_relationships