On Sat, 2022-10-29 at 09:46 +0000, 'Mark Raynsford' via H2 Database wrote: > I'm slightly confused as to how to represent a particular data > structure efficiently. It's pretty simple, so I'll describe it in > terms > of SQL: > > create table t ( > group integer not null, > member integer not null, > primary key (group, member) > ); > > I think the natural way this would be expressed as a plain Java data > structure would be: > > Map<Integer, Set<Integer>>
Greetings, based on your PRIMARY KEY it would be MAP<Key, T> with a Class Key ( int group, int member ) and a class T (int group, int member). If group represents the key, and member represents the object, then PRIMARY KEY(group) and MAP<Integer, Integer>. Best regards Andreas -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to h2-database+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/h2-database/0f147504216fdd15e90ded31cabaad56a98cecce.camel%40manticore-projects.com.
