DELETE vs TRUNCATE vs DROP in MySQL: Key Differences

Three commands remove data, but at very different scales: DELETE removes rows, TRUNCATE empties a table, DROP destroys the table itself. Confusing them is dangerous — and clarifying them is a classic interview question.

Key Points

• DELETE: row-by-row removal, supports WHERE, can be rolled back in a transaction
• TRUNCATE: instantly empties the whole table, resets AUTO_INCREMENT, cannot target rows
• DROP: deletes the table structure, data, and indexes entirely
• Speed: TRUNCATE > DELETE for full-table clears
• DELETE fires triggers; TRUNCATE does not
• DROP and TRUNCATE are DDL and auto-commit — no rollback