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Editorial Team
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Asked: 2026-05-25T13:57:34+00:00

SELECT column_name, aggregate_function(column_name) FROM table_name WHERE column_name operator value GROUP BY column_name HAVING aggregate_function(column_name)

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SELECT column_name, aggregate_function(column_name) 
FROM table_name 
WHERE column_name operator value 
GROUP BY column_name 
HAVING aggregate_function(column_name) operator value

What is the difference between having and where

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1 Answer

  1. Editorial Team

    where filters on the select ... from

    having filters on the aggregate results from the group by ...

    So, looking at your example again:

    SELECT column_name, aggregate_function(column_name)
FROM table_name
WHERE column_name operator value
GROUP BY column_name
HAVING aggregate_function(column_name) operator value

    Here, WHERE column_name operator value says “Return results for table_name where
    ‘column_name operator value’ is true”.

    Only after all the results from these conditions are found, it groups by column_name.

    Then HAVING aggregate_function(column_name) operator value says “For the resulting aggregate groups, run ‘aggregate_function(column_name)’ and return only results where ‘aggregate_function(column_name) operator value’ is true.”

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