数据库架构

Question

I have create an application for my client. They are wanting to be able to join 2 or more products together.

Table turbo_connections, has 3 columns primary_id , partner_id and verified .

What would be the best way to use this?

1. When you go to find stock loop through the table and find all of the primary_id's of what the current turbo is linked to and then keep searching until there is no more left to find.

2. When going to add a link between the 2 products get all the other connections of the partner_id and primary_id already and add them to each other so makes display stock easier because all data will be there.

Or if you have an idea I am all up for learning.

Answer 1

What you need is a join. It sounds like you're not familiar with them.

There's lots of tutorials on the web, such as this one: SQL Joins Tutorial

What you'd want to do is join the turbo_connections table with the products table. As a contrived example:

select * from turbo_connections t join products p on t.primary_id = p.primary_id

That will give you the list of products and turbo_connections that have matching primary_id's.

If you want to edit your post with more details about your tables and what the desired output should be, we can suggest the proper joins necessary.