One Wrong JOIN Cost Us $7M (Here's What We Learned)
One wrong JOIN made us think our pipeline was down $5M.
In reality? We were $2M over target.
In this episode of DATA Words, Chris Gambill breaks down:
✅ SQL’s real execution order (it’s NOT SELECT first!)
✅ JOIN types (and which one broke a Salesforce dashboard)
✅ Window functions explained with a Price Is Right twist
✅ The truth about SQL sub-languages (DDL, DML, DCL, TCL)
This isn’t a syntax lesson. This is how to actually think in SQL—and how to stop breaking your dashboards.
🔗 Resources & Links:
📥 Read The Blog On the Website:
→ https://www.gambilldataengineering.co...
🎓 Watch Lesson 3: SQL Fundamentals
→ • How One Tiny SQL Mistake Lost $3 Million!
📥 Sign up for the weekly newsletter for more Data Knowledge from Gambill Data
→ https://www.gambilldataengineering.co...
🧠 Read the Full Article
→ / sqls-hidden-travel-itinerary-one-join-coul...
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Chapters:
00:00 The $7M Mistake!
00:37 SQL Execution Order
02:45 SQL Joins
06:54 The Range Game: SQL Window Functions
09:03 Extra Word: SQL (Do You Really Know?)