This SQL Trick Saved Me 4 Hours a Week (Postgres)
This one SQL trick saved me 4 hours of my week — and it's not the only one.
In this video I break down 10 Postgres-first SQL patterns I write every single day at work. The queries that turn a painful afternoon of debugging into a clean one-liner. These are the patterns that separate juniors from seniors — no theory, just the stuff that ships.
Save this video. You'll come back to it.
🔥 What you'll learn:
• JOIN types decoded (and the LEFT JOIN bug that ate your Friday)
• The GROUP BY trap that blocks every junior
• Window functions — the line in the sand between junior and senior SQL
• CTEs that survive code review
• COALESCE & NULLIF: killing NULL chaos
• DISTINCT ON — Postgres's secret weapon
• UPSERT with ON CONFLICT (delete hundreds of lines of app code)
• UPDATE FROM for bulk updates that finish in seconds
• Indexes 101 — turn 10s queries into 10ms
• EXPLAIN ANALYZE — the senior dev superpower
👉 Drop "SQL" in the comments if you want a Part 2 on query optimization, JSONB tricks, and the Postgres features nobody talks about.
🔔 Subscribe for more dev tips that actually move the needle — ship faster, debug less, level up.
Chapters-
00:00 The 4-hour SQL trick (hook)
00:22 Why these 10 patterns matter
00:40 #1 JOIN types decoded
01:17 #2 The GROUP BY trap
01:49 #3 Window functions (junior → senior)
02:23 #4 CTEs that survive code review
02:55 #5 COALESCE & NULLIF
03:26 #6 DISTINCT vs GROUP BY vs DISTINCT ON
03:59 #7 UPSERT with ON CONFLICT
04:30 #8 UPDATE FROM
05:00 #9 Indexes 101
05:34 #10 EXPLAIN ANALYZE
06:07 The payoff
06:28 Subscribe + Part 2
👉 🌐 Start learning here: https://crooked-partridge.super.site/
🎁 Free Resources:
📥 Git Cheat Sheet
📥 SQL Quick Guide
📥 CSS Tricks List
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