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SQL Interview Questions

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CompanyTitleDifficultyStatus

Facebook

Active User Retention

Hard

Wayfair

Y-on-Y Growth Rate

Hard

Amazon

Maximize Prime Item Inventory

Hard

Google

Median Google Search Frequency

Hard

Facebook

Advertiser Status

Hard

McKinsey

3-Topping Pizzas

Hard

Stripe

Repeated Payments

Hard

Amazon

Server Utilization Time

Hard

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Percentage Calculations6

Array Functions1

bball0

Date-Time Functions11

Mathematical Functions8

fun-run0

Aggregate Functions30

Ace the Data Science Interview15

Data Type Conversion11

Data Generation Functions0

Window Functions10

The-Office-SQL0

Set Operations8

Null Handling3

Conditional Expression13

Top N Results5

Control Flow Functions1

Existence Check6

Conditional Logic8

Common Table Expressions (CTE) or Subquery8

String Functions2

Distinct and Unique Handling8

User Behavior6