sql count total by foreign key
SELECT books.*, count(orders.book_id) as number_of_orders
from books
left join orders
on (books.book_id = orders.book_id)
group by
books.book_idsql count total by foreign key
SELECT books.*, count(orders.book_id) as number_of_orders
from books
left join orders
on (books.book_id = orders.book_id)
group by
books.book_idCopyright © 2021 Codeinu
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