This question shows research effort; it is useful and clear
2
This question does not show any research effort; it is unclear or not useful
Bookmark this question.
Show activity on this post.
2 つのテーブルに内部結合を実装し、それらに基づいて実装する必要がorder_headerありorder_itemますORDER_ID。同等の SQL クエリ:
SELECT * FROM order_header INNER JOIN order_item ON order_header.ORDER_ID=order_item.ORDER_IDHow to implement this in ydn-db?