DatabasesBackendHigh signal
Query Optimization
The process of rewriting a database query or adjusting a database's structure so a slow query runs faster, often by reducing how much data it has to scan.
Think of it like
Like redesigning a grocery store's layout so the most-bought items are near the entrance, instead of making every shopper walk every aisle.
Junior or senior?
Junior sounds like
Guesses which index might help.
Senior sounds like
Reads the query's actual execution plan to diagnose it.
Ask them
“Walk me through how you diagnosed a slow query — did you look at its execution plan?”