Speed Superpowers! How Database Indexes Help Find Data Fast
Imagine you have a huge storybook with 10,000 pages. Databases work the same way.That magical shortcut is called an INDEX. What Is an Index? An index is like: It helps MySQL find data faster without checking every row. Without Index MySQL says: “Let me check row 1… row 2… row 3… row 1,000,000…” With Index MySQL says: “Aha! I know exactly where this data lives!” Real-Life Example Imagine a school register: Roll No Name 1 Rahul 2 Anya 3 Rohan If the teacher wants Rohan: Table Example (Our Playground) Searching WITHOUT an Index MySQL scans every rowSlow for big tablesThis…