如何创建表列，该列是另一个表中的项目的列表

Question

I need to make a database table for a small invoice app i am making, and I made a table called "Invoice" which stores all my invoices. It has a column called "items" which should be a list of items invoiced to the customer. ie "Camera, film, lens".

The items are located on another table called "Items" which has "item_name" and "Item_id".

How can I make the "items" column in "Invoice" store a list of Items?

Thanks

Answer 1

对外键进行一些研究，并尝试在您的方案中实现它们。

Answer 2

You need to join your tables. You will do this using Your Primary Key of one table and a foreign key in another. Use the below formula.

'SELECT column_name(s)
FROM table1
INNER JOIN table2
ON table1.column_name=table2.column_name;'

You will then use the below formula to select your data into a new table.

'SELECT *
INTO newtable [IN externaldb]
FROM table1;'