SQL DML Commands (INSERT,UPDATE,DELETE,MERGE,INSERTALL)

Welcome to DataSurface — where students, analysts, and aspiring engineers master data skills that shape the future.

In this deep dive, we master the lifeblood of database operations: Data Manipulation Language (DML). While DDL builds the house, DML is how we live in it. We go beyond basic syntax to explore the "Big 3" — INSERT, UPDATE, and DELETE — while mastering professional tools like MERGE (Upsert) and INSERT ALL for bulk operations. Most importantly, we cover the safety protocols and the power of ROLLBACK to ensure you never accidentally wipe out production data.

🎯 This video is for:
🎓 Students exploring tech career paths.
🚀 Aspiring Cloud and Data Engineers.
🔄 Career switchers looking to understand the modern IT landscape.
🧑‍💻 IT professionals wanting a quick refresher on SQL.

⏱️ Timestamps ⏱️
⌚ 00:00 - Introduction to SQL DML
⌚ 00:35 - DDL vs DML: The Architect vs The Librarian
⌚ 01:48 - The Safety Net: Using ROLLBACK & COMMIT
⌚ 02:18 - INSERT: Adding New Records Safely
⌚ 03:46 - UPDATE: Modifying Existing Data (Don't Forget WHERE!)
⌚ 04:58 - DELETE: Selective Record Removal
⌚ 05:20 - DELETE vs TRUNCATE: The Key Differences
⌚ 07:32 - MERGE Deep Dive: The Power of Upsert
⌚ 09:48 - INSERT ALL: Multi-Table Bulk Operations
⌚ 10:13 - Conclusion: Thinking Like a Senior Data Engineer

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Видео SQL DML Commands (INSERT,UPDATE,DELETE,MERGE,INSERTALL) канала DataSurface