I'm developing a ER model and i have a trouble.
I have a entity called client and it pay for another client (Same entity)
It's something like this:
client(one,many) --- PAY-->(relationship) --- (one,many)client
that this right?
I thank those who help me.
P.S: Sorry for my bad english, i'm still learning...
Yes.
client(one,many) --- PAYS FOR-->(relationship) --- (one,many)client
is correct.
These relationships between the entities are called Recursive Relationships. It is similar to a manager paying an employee, as the manager is also an employee. Employee == Client in your case.
Do go through this site to get a detailed knowledge about relationships. http://www.sqa.org.uk/e-learning/SoftDevRDS02CD/page_49.htm