Database design

[Julian Botta]

I have the following database structure, for a transportation program
jobs 1:many customer
customers 1:many refferenc

Prb. Every job has one customer. Every customer has many reffernce(employees of the customers). Every job should have also one of the customer's refference on it

If I try to have a field as refference in table jobs and to have the following relationship
jobs 1:many refferenc

the program is blocking itself, and the form will not show up working
Any sugestions

Thanks Julian.

 

[Mark Brunstetter]

If every job has one customer, then you need to create a one-to-one relation
between those two tables.

You don't need to relate the jobs table directly to the references, they are
linked indirectly through the (1) jobs --> (1) customers --> (many)
references relation

I have the following database structure, for a transportation program:
jobs 1:many customers
customers 1:many refference

Prb. Every job has one customer. Every customer has many

reffernce(employees of the customers). Every job should have also one of the
customer's refference on it.

 

[Julian Botta]

Still don't have any control. The form is not blocking any more but the following problem still remains
one job can have only one customer. I relate them one to one as you said
one customer has many refference, but only one it will be attribuited this job
So the logic sense it says like that: if customer 1 has reffernce 1 and 2 and 3, and customer 2 has reff 4 and 5.
If I choose customer 1 as resposable for the job I should only choose from reff 1 or 2 or 3 on the drop list

Thank you
Julian