Creating a many-many relationship does not create a sub-table

Hello,

I’m fairly new to UML and ERD, but I am trying to use the community edition to create an ERD for a database. When I link 2 tables together with a many-many relationship the documentation says that a subtable should be created. When I do it, the GUI immediately defaults into naming the relationship, and after doing that there is no further action. Am I doing something wrong? Need to his a checkmark somewhere? Maybe the community edition doesn’t do that?

Any help would be appreciated.

Thanks,
Simon

Hello Simon,

May I know you are specify your ERD as a Conceptual ERD, Logical ERD or a Physical ERD? Resolve M:N relationship into 2 x 1:M relationship is available to the Physical ERD only.

Best regards,
Rain Wong

Hi Rain,

I was making a conceptual diagram. Thanks for pinpointing it so quickly.

Regards,
Simon

Hello Simon,

The automatic resolve of M:N relationship is only on the Physical ERD (as this is a way to solve a physical implementation in database). You can right click on the blank area of the ERD and select Data Model to switch between different form of data model.

Best regards,
Rain Wong