SQL Combine duplicate rows while concatenating one column - sql

Question

I have a table (example) of orders show below. The orders are coming in with multiple rows that are duplicated for all columns except for the product name. We want to combine the product name into a comma delimited string with double quotes. I would like to create a select query to return the output format shown below.
INPUT
Name address city zip product name
-----------------------------------------------------------------
John Smith 123 e Test Drive Phoenix 85045 Eureka Copper Canyon, LX 4-Person Tent
John Smith 123 e Test Drive Phoenix 85045 The North Face Sequoia 4 Tent with Footprint
Tom Test 567 n desert lane Tempe 86081 Cannondale Trail 5 Bike - 2021
OUTPUT
Name address city zip product name
------------------------------------------------------------------
John Smith 123 e Test Drive Phoenix 85045 "Eureka Copper Canyon, LX 4-Person Tent", "The
North Face Sequoia 4 Tent with Footprint"
Tom Test 567 n desert lane Tempe 86081 Cannondale Trail 5 Bike - 2021

Answer 1

You can have List_AGG() OR GROUP_CONCAT and then join the results back to original table. Then you can remove duplicates using row_number which will create a same rank
if data is same
WITH ALL_DATA AS (
SELECT * FROM TABLE
),
LIST_OF_ITEMS_PER_PRODUCT AS (
SELECT
ALL_DATA.NAME,
LIST_AGG(ALL_DATA.PRODUCT_NAME , ",") AS ALL_PRODUCTS_PER_PERSON
-- IF YOUR SQL DON'T SUPPORT LIST_AGG() THEN USE GROUP_CONCAT INSTEAD
FROM
ALL_DATA
GROUP BY 1
),
LIST_ADDED AS (
SELECT
ALL_DATA.*,
LIST_OF_ITEMS_PER_PRODUCT.ALL_PRODUCTS_PER_PERSON
FROM
ALL_DATA
LEFT JOIN LIST_OF_ITEMS_PER_PRODUCT
ON ALL_DATA.NAME = LIST_OF_ITEMS_PER_PRODUCT.NAME
),
ADDING_ROW_NUMBER AS (
SELECT
* ,
ROW_NUMBER() over (partition by list_added.NAME, ADDRESS, CITY, ZIP ORDER BY NAME) AS ROW_NUMBER_
FROM LIST_ADDED
)
SELECT
* FROM
ADDING_ROW_NUMBER
WHERE ROW_NUMBER_ = 1