SQL & Data Interview Questions

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

CompanyTitleCategoryDifficultyStatus
Uber icon

Uber

User's Third Transaction

SQLMedium
FAANG icon

FAANG

Second Highest Salary

SQLMedium
Snapchat icon

Snapchat

Sending vs. Opening Snaps

SQLMedium
Twitter icon

Twitter

Tweets' Rolling Averages

SQLMedium
Amazon icon

Amazon

Highest-Grossing Items

SQLMedium
FAANG icon

FAANG

Top Three Salaries

SQLMedium
TikTok icon

TikTok

Signup Activation Rate

SQLMedium
Microsoft icon

Microsoft

Supercloud Customer

SQLMedium
Google icon

Google

Odd and Even Measurements

SQLMedium
Zomato icon

Zomato

Swapped Food Delivery

SQLMedium
Bloomberg icon

Bloomberg

FAANG Stock Min-Max (Part 1)

SQLMedium
Amazon icon

Amazon

User Shopping Sprees

SQLMedium
Walmart icon

Walmart

Histogram of Users and Purchases

SQLMedium
Alibaba icon

Alibaba

Compressed Mode

SQLMedium
JPMorgan icon

JPMorgan

Card Launch Success

SQLMedium
Verizon icon

Verizon

International Call Percentage

SQLMedium
UnitedHealth icon

UnitedHealth

Patient Support Analysis (Part 2)

SQLMedium

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Tags

Distinct and Unique Handling

23

Aggregate Functions

84

Set Operations

16

Data Type Conversion

29

Null Handling

7

Percentage Calculations

20

Array Functions

3

Ace the Data Science Interview

28

String Functions

5

Date-Time Functions

30

Control Flow Functions

1

User Behavior

14

Common Table Expressions (CTE) or Subquery

40

Window Functions

38

Data Generation Functions

1

Joins

12

Existence Check

9

Mathematical Functions

20

Conditional Expression

39

Arithmetic Operators

4

Top N Results

12

Conditional Logic

30

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