Get products without sales for last 7day - mysql

Question

I have two tables products and user_sales. I need to get the products which have 0 sales for the last 7 days.
I tried some code which I found in stack overflow with the "HAVING" statement but I found out if I put a limit of 12 products than it doesnt works.
Can anoyone please help ?
table products
id | title | price | images | description
table user_sales
id | product_id | sale_date | user_owner
Well that was the simplified version of the tables. The actual query looks somehow like this.
SELECT `product_store`.`friendly_name` AS `store_friendly_name`,
`api_keys`.`key_data` AS `api_data`,
`ep`.*,
`supplier_store`.`icon` AS `supplier_store_icon`,
`supplier_store`.`internal_name` AS `supplier_store_internal_name`,
`supplier_store`.`friendly_name` AS `supplier_store_friendly_name`,
`supplier_store`.`amazon_type_product` AS
`supplier_store_amazon_type_product`,
`supplier_store`.`handler` AS `supplier_store_handler`,
`sp`.`extra_data` AS `sp_extra_data`,
`sp`.`id` AS `sp_id`,
`sp`.`remote_id` AS `sp_remote_id`,
`sp`.`url` AS `sp_url`,
`sp`.`price` AS `sp_price`,
`sp`.`stock` AS `sp_stock`,
`sp`.`picture` AS `sp_picture`,
`sp`.`store_id` AS `sp_store_id`,
Count(us.date) AS sale_date
FROM `products` `ep`
LEFT JOIN `stores` `product_store`
ON `ep`.`store_id` = `product_store`.`id`
LEFT JOIN `api_keys`
ON `api_keys`.`id` = `ep`.`link_key`
LEFT JOIN `products` `sp`
ON `ep`.`linked_to` = `sp`.`id`
LEFT JOIN `stores` `supplier_store`
ON `supplier_store`.`id` = `sp`.`store_id`
RIGHT JOIN `user_sales` `us`
ON `ep`.`remote_id` = `us`.`remote_id`
WHERE `ep`.`user_owner` = '3992'
AND `ep`.`expired` = 0
AND `us`.`user_id` = '3992'
AND us.date > "2019-02-09 14:21:34"
AND us.date < "2019-05-10 14:21:34"
AND `ep`.`store_id` = 3
GROUP BY `ep`.`id`
HAVING `sale_date` < 1
ORDER BY `ep`.`id` DESC
LIMIT 15

Answer 1

You want to ensure that no sales exist for the product in the last seven days. Use NOT EXISTS for that.
From your query I take it that you want to restrict this to products belonging to user_owner 3992 and to sales of the same user.
WHERE ep.user_owner = 3992
AND ep.expired = 0
AND ep.store_id = 3
AND NOT EXISTS
(
SELECT *
FROM user_sales us
WHERE us.user_id = ep.user_owner
AND us.date > current_date - interval 7 day
)
The complete query:
SELECT product_store.friendly_name AS store_friendly_name,
api_keys.key_data AS api_data,
ep.*,
supplier_store.icon AS supplier_store_icon,
supplier_store.internal_name AS supplier_store_internal_name,
supplier_store.friendly_name AS supplier_store_friendly_name,
supplier_store.amazon_type_product AS
supplier_store_amazon_type_product,
supplier_store.handler AS supplier_store_handler,
sp.extra_data AS sp_extra_data,
sp.id AS sp_id,
sp.remote_id AS sp_remote_id,
sp.url AS sp_url,
sp.price AS sp_price,
sp.stock AS sp_stock,
sp.picture AS sp_picture,
sp.store_id AS sp_store_id
FROM products ep
LEFT JOIN stores product_store ON ep.store_id = product_store.id
LEFT JOIN api_keys ON api_keys.id = ep.link_key
LEFT JOIN products sp ON ep.linked_to = sp.id
LEFT JOIN stores supplier_store ON supplier_store.id = sp.store_id
WHERE ep.user_owner = 3992
AND ep.expired = 0
AND ep.store_id = 3
AND NOT EXISTS
(
SELECT *
FROM user_sales us
WHERE us.user_id = ep.user_owner
AND us.date > current_date - interval 7 day
)
ORDER BY ep.id DESC;