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GROUP BY and HAVING
Last Updated: April 8, 2026
Ashish Pratap Singh
10 min read
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On this page
Sample Data
What GROUP BY Does
GROUP BY with Multiple Columns
The SELECT Rule
GROUP BY with Expressions
HAVING: Filtering Groups
WHERE vs HAVING
SQL Execution Order with GROUP BY and HAVING
Common GROUP BY Pitfalls
Putting It All Together
GROUP BY with Joins: What Gets Grouped
Vote/Request Content
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