SQL examples

SQL query examples for real-world learning

This page gathers practical SQL query examples across the core parts of SQL, from filtering and grouping to joins, subqueries, CTEs, window functions, and optimization.

What these examples cover

SELECT examples

Learn how to pull useful columns and filter results with precision.

WHERE and ORDER BY

Apply filtering, ordering, and result shaping to business questions.

GROUP BY and HAVING

Summarize data and isolate groups that match important conditions.

JOIN examples

Combine rows across tables and answer relational questions correctly.

Subqueries

Use nested logic for comparisons, filters, and derived data sets.

CTEs and windows

Break complex logic into readable steps and analyze row-level trends.

Explore related SQL topics

SQL JOIN examples GROUP BY examples Subquery examples CTE examples Window functions Query optimization SQL interview questions

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