Query Optimization ka Funda
Understand how Query Optimization works with Fullstackgada
More Diagrams
Follow for More
🐌 Bhide ki Slow Query
Problem: Ratnagiri ke customers nikaalne mein query hang ho rahi hai — Table mein laakhon rows hain!
🛵 Purana Scooter, Slow Database
🐢
SELECT * — saara load ek saath
🔍
City pe koi Index nahi — database dheeme chalta hai
🔥
Optimization se Ferrari bana do!
💡 Jethalal ke 5 Optimization Tips
1️⃣ Sirf zarurat ke columns SELECT karo
Hotel wala logic: jitna khana, utna hi mangao!
2️⃣ City Column pe Index lagao
Babita ko crowd mein turant spot karna!
3️⃣ Composite Index
Combo pack – city+age pe index
4️⃣ Indexed column pe function mat lagao
Database ko UPPER/LOWER mein mat daalo
5️⃣ Execution Plan dekho
Papad bel rahe ho — andar se database jal raha hai!
🎮 Query Playground (Live Experiment Karo)
SELECT jo laakhon records ke saath hai? Selective columns try karo, index toggle karo, aur performance dekho!
Yahan SQL code dikhega
Query chalaao to performance dekho...