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SQL Practice Ground
Start with the foundations. Build toward real analysis.
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Your learning path
Six stages · Go at your own paceSQL foundations
Select, filter and sort
0/36 complete · 0%
Precise filtering
Expressions, dates and NULLs
0/33 complete · 0%
Connect & aggregate
Joins, groups and totals
0/48 complete · 0%
Build useful reports
Subqueries and business logic
0/18 complete · 0%
Analytical SQL
CTEs, ranking and windows
0/57 complete · 0%
Business analysis
Cohorts, risk and trends
0/18 complete · 0%
Workplace scenarios
The problem library
Daily Commute & Transit · Stage 1 · Scenario variation
List recent records
SELECT
Parcel & Warehouse Operations · Stage 1 · Scenario variation
List recent records
SELECT
SaaS & Software Subscriptions · Stage 1 · Scenario variation
List recent records
SELECT
General SQL · Stage 1
The high-value orders
Filtering
General SQL · Stage 1
Revenue by category
Aggregation
Grocery & Household Shopping · Stage 1 · Scenario variation
List recent records
SELECT
General SQL · Stage 1
Customers with no orders
Subqueries
Personal Banking · Stage 1 · Scenario variation
Find one city
WHERE
SaaS & Software Subscriptions · Stage 1 · Scenario variation
Find one city
WHERE
Daily Commute & Transit · Stage 1 · Scenario variation
Find one city
WHERE
Parcel & Warehouse Operations · Stage 1 · Scenario variation
Find one city
WHERE
SaaS & Software Subscriptions · Stage 1 · Scenario variation
Filter active accounts
WHERE
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