Practice Interview Questions
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Facebook
Active User Retention
Wayfair
Y-on-Y Growth Rate
Amazon
Maximize Prime Item Inventory
Google
Median Google Search Frequency
Advertiser Status
McKinsey
3-Topping Pizzas
Stripe
Repeated Payments
Server Utilization Time
FAANG
Department vs. Company Salary
Easy
0/21
Medium
0/17
Hard
0/9
Percentage Calculations7
Joins11
Array Functions1
bball0
Date-Time Functions13
Mathematical Functions9
fun-run0
Aggregate Functions36
Ace the Data Science Interview15
Data Type Conversion13
Data Generation Functions0
Window Functions12
The-Office-SQL0
Set Operations2
Null Handling5
Conditional Expression17
Top N Results6
Control Flow Functions1
Arithmetic Operators3
Existence Check3
Conditional Logic11
Common Table Expressions (CTE) or Subquery17
String Functions2
Distinct and Unique Handling9
User Behavior6