Without ORDER BY, SQL results come back in an unpredictable order — the database returns rows however it finds them fastest. ORDER BY guarantees a consistent sequence, and LIMIT gives you top-N reports, latest records, and pagination. These two clauses are behind every leaderboard and feed in every app.
1-B 2-B 3-A 4-C | 5 ASC 6 LIMIT 7 = SELECT * FROM products ORDER BY price DESC LIMIT 5; 8 = SELECT name FROM students ORDER BY name ASC; 9 = ... LIMIT 10 OFFSET 10; | 10 = ORDER BY grade DESC, name ASC