I am very new to Database and I want to know raw sql query. I have 2 tables Category and Product Product table has foreign_key(category_id).
How can I get all categories with 10 products for each category? So I will display each category name and 10 products on first page.
SELECT *
FROM categories
INNER JOIN
(SELECT * FROM products ORDER BY price LIMIT 10) as p
ON
categories.id = p.category_id
And also want to query reviews table that product has. How can I join 2 tables(Category with Product(1), Review(2)
A simple way is a lateral join:
SELECT *
FROM categories c LEFT JOIN LATERAL
(SELECT p.*
FROM products p
WHERE c.id = p.category_id
ORDER_BY p.price
LIMIT 10
) p
ON 1 = 1
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