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Editorial Team
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Asked: 2026-05-20T08:18:13+00:00

I came up with the following query to return product pricing data. This query

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I came up with the following query to return product pricing data. This query works fine, although I’m wondering if there is a way to simplify/optimize it?

The query pulls info about the product and pricing details for each product. If there is no pricing details (p_p.pl_id = 2) for particular product join another query with pricing details (p_p.pl_id = 1). Finally group all products by id to get distinct rows.

Tables used:
products – some details about the products like name, description etc.
product_pricing (p_p) – contains pricing details for every product. There may be more that one records for one product because product price varies depending on ordered quantity

SELECT * FROM (
(
SELECT `products`.*, 
GROUP_CONCAT(p_p.`qty_range` SEPARATOR '|') AS qty_range, 
GROUP_CONCAT(CAST(p_p.`p_price` AS CHAR) SEPARATOR '|') AS price 
FROM `products`
LEFT JOIN `prod_pricing` AS p_p ON p_p.`prod_id` = `products`.`prod_id` 
WHERE `products`.`account_id` = 2
AND p_p.`pl_id` = 2
GROUP BY `products`.`prod_id`
) 
UNION
(
SELECT `products`.*, 
GROUP_CONCAT(p_p.`qty_range` SEPARATOR '|') AS qty_range, 
GROUP_CONCAT(CAST(p_p.`p_price` AS CHAR) SEPARATOR '|') AS price 
FROM `products`
LEFT JOIN `prod_pricing` AS p_p ON p_p.`prod_id` = `products`.`prod_id` 
WHERE `products`.`account_id` = 2
AND p_p.`pl_id` = 1
GROUP BY `products`.`prod_id`
)) AS list
GROUP BY list.`prod_id`
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1 Answer

  1. Editorial Team

    Ok, I finally figured it out.
    I created two temporary tables t1,t2 that reflect data with pl_id = 1 and 2. Next I joined those tables to the products table and with IF condition returned products with pricing from pl_id = 2 and pl_id =1 only when pricing for pl_id = 2 doesn’t exist.
    Thanks to everyone for help!

    Here’s the query

    SELECT p.*,
IF(t2.pl_id IS NULL,t1.qty_range,t2.qty_range) AS qty_range,
IF(t2.pl_id IS NULL,t1.price,t2.price) AS price
FROM products AS p
LEFT JOIN
(
    SELECT p_p.prod_id,
    GROUP_CONCAT(p_p.qty_range SEPARATOR '|') AS qty_range, 
    GROUP_CONCAT(CAST(p_p.p_price AS CHAR) SEPARATOR '|') AS price 
    FROM prod_pricing AS p_p WHERE p_p.pl_id = 1
    GROUP BY p_p.prod_id
) AS t1 ON t1.prod_id = p.prod_id
LEFT JOIN
(
    SELECT p_p.prod_id,p_p.pl_id,
    GROUP_CONCAT(p_p.qty_range SEPARATOR '|') AS qty_range, 
    GROUP_CONCAT(CAST(p_p.p_price AS CHAR) SEPARATOR '|') AS price 
    FROM prod_pricing AS p_p WHERE p_p.pl_id = 1
    GROUP BY p_p.prod_id
) AS t2 ON t2.prod_id = p.prod_id 
WHERE p.account_id = 2
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