Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
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create table categories (
id int, name varchar(64)
);
insert into categories values (1, 'Category1'),(2, 'Category2');
create table products (
id int, cat_id int, name varchar(64), price int
);
insert into products values (1, 1, 'Prod1', 10),(2, 1, 'Prod2', 12), (3, 2, 'Prod3', 10);
SELECT cat.id, cat.name, JSON_ARRAYAGG(
JSON_OBJECT('pro_name',pro.name,'pro_pice',pro.price)
) prod
FROM products as pro
JOIN categories as cat on pro.cat_id = cat.id
GROUP BY cat.id, cat.name
ORDER BY cat.id;
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