> Everything should have an id, and combination tables like person-gene should > have the person id + the gene id. > You might look at this tool to make your life easier: > https://github.com/pgmodeler/pgmodeler > > First, read up on this: > http://en.wikipedia.org/wiki/Entity%E2%80%93relationship_model > then, it will be obvious how to use the tool.
>> Everything should have an id, and combination tables like person-gene should >> have the person id + the gene id. Yes. The model provided is a minimal approximation of the actual model. The real thing uses numeric id columns to link tables, as well as many constraints to ensure valid input and about a hundred other tables. In the example I used names as keys rather than numeric ID's to try and make it a little easier to follow my intent. Perhaps this had the opposite effect. -Modulok- -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
