Relationship in SQL Developer Data Modeller

Rajneesh S-Oracle

Hello Experts,

What is difference between doted line and bold line at data modeller, while showing many to 1 cardinality:

Thanks,

Rajneesh

Dave Schleis

Hello Rajneesh,

Let me first recommend the definitive book on the topic: Oracle SQL Developer Data Modeler for Database Design Mastery by Heli Helskyaho

The dashed lines represent an optional relationship, while the solid line represents a mandatory relationship.

Hope this helps

--dave

Dave Schleis

Hello Rajneesh,

Let me first recommend the definitive book on the topic: Oracle SQL Developer Data Modeler for Database Design Mastery by Heli Helskyaho

The dashed lines represent an optional relationship, while the solid line represents a mandatory relationship.

Hope this helps

--dave

Rajneesh S-Oracle

Thanks Dave !!!

It means in case of dashed line , there may null values in FK column but in other case there won't be?

Regards,

Rajneesh

Dave Schleis

Yes, that is correct.