SQL & Data Interview Questions

Practice the most common SQL, Statistics, ML, and Python questions asked in FAANG Data Science & Data Analyst interviews!

CompanyTitleCategoryDifficultyStatus

Active User Retention

SQLHard

Y-on-Y Growth Rate

SQLHard

Maximize Prime Item Inventory

SQLHard

Median Google Search Frequency

SQLHard

Advertiser Status

SQLHard

Word Search

PythonHard

3-Topping Pizzas

SQLHard

Product vs. Square

StatisticsHard

Modeling User Churn

Machine LearningHard

Department vs. Company Salary

SQLHard

Repeated Payments

SQLHard

Minimum of Two Uniform Variables

StatisticsHard

Frequentist vs. Bayesian

StatisticsHard

Server Utilization Time

SQLHard

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Tags

Percentage Calculations

2

Joins

2

Array Functions

2

Date-Time Functions

1

Mathematical Functions

2

Aggregate Functions

2

Ace the Data Science Interview

2

Data Type Conversion

2

Data Generation Functions

2

Window Functions

2

Set Operations

2

Null Handling

2

Conditional Expression

2

Top N Results

2

Control Flow Functions

2

Arithmetic Operators

2

Existence Check

2

Conditional Logic

2

Common Table Expressions (CTE) or Subquery

2

String Functions

2

Distinct and Unique Handling

2

User Behavior

2

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