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Writing User-Defined Functions in PostgreSQL

Returning tables and sets
Summary

Instruction

Hi again! In this part there's no Introduction section – we'll continue our journey from the previous part.

Using functions, you can also return tables; you are not limited to returning just a single value or parameters.

Let's first see an example:

SELECT *
FROM get_active_users();

Exercise

Run the template query. Observe that the function returns multiple rows.