FAQ: Set Operations - Union

This community-built FAQ covers the “Union” exercise from the lesson “Set Operations”.

Paths and Courses
This exercise can be found in the following Codecademy content:

SQL: Table Transformation

FAQs on the exercise Union

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It might be helpful to add a column to each of the tables so you can see where each brand came from, either the legacy table or the new table

SELECT brand, ‘l’ as ‘table_source’ FROM legacy_products
UNION
SELECT brand, ‘n’ as ‘table_source’ FROM new_products;

this gets the data

Query Results

brand table_source
l
n
!it Jeans n
12XLShop Inc. l
1826 n