SQL Practice

Real-life business problems on real tables. Read the scenario, write the query, and get it checked instantly.

All topics SELECT & Filtering Sorting & Limits Aggregation Joins String & Date Functions Window Functions Subqueries NULL & CASE CTEs & Recursion Set Operators Analytics Patterns

All levels Basic Intermediate Expert

Customers from Lahore

SELECT & Filtering

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Premium products above Rs 1,000

Sorting & Limits

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How many orders were cancelled?

Aggregation

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VIP outreach in emerging markets

SELECT & Filtering

Solve challenge

Five fattest margins in Electronics

Sorting & Limits

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Which sales channel loses the most orders?

Aggregation

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How long does a parcel really take?

String & Date Functions

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Signed up, never bought

Joins

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Flagged card payments for the fraud desk

SELECT & Filtering

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The five biggest paying plans right now

Sorting & Limits

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How healthy is the loan book?

Aggregation

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On time, late or still unpaid?

NULL & CASE

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Payday money by month

String & Date Functions

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Well-paid 2025 hires in Western Europe

SELECT & Filtering

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The five biggest cheques in the transfer market

Sorting & Limits

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Where does the payroll sit?

Aggregation

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Length of stay month by month in 2025

String & Date Functions

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Who is still in a bed?

NULL & CASE

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Long-haul legs over 9,000 km

SELECT & Filtering

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The five priciest tickets

Sorting & Limits

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Zoomi city revenue scoreboard

Aggregation

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Which weekday does the airline fly most?

String & Date Functions

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How many completed trips never got a rating?

NULL & CASE

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Premium fans in Brazil, Mexico and Turkey

SELECT & Filtering

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The long play playlist

Sorting & Limits

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Where do our listeners live?

Aggregation

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Age groups and the people who never told us

NULL & CASE

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Handle generator for the Q1 2026 sign-ups

String & Date Functions

Solve challenge