Mini Twitter relational schema with six core tables modeling users, tweets, interactions, and social connections. USERS table stores profiles with authentication and metadata; TWEETS links to users and supports media; TWEET_COMMENTS and TWEET_LIKES enable engagement; FRIEND_REQUESTS and FRIENDSHIPS manage social graphs with status tracking. This normalized design demonstrates foreign key relationships essential for maintaining data integrity in multi-user social platforms. Fork and customize this schema on Diagrams.so to adapt it for your own social networking application or study relational database design patterns. Consider indexing user_id and tweet_id columns for query performance at scale.