SubType for Discussions in Dtree?

Shirley_Xie_(xie_(Delete)_1422527)

I'm using Livelink 8.1.3.I want to get the list of the name of all Discussions without threads.I get a list of Discussions(List 1) when I only choose SubType = 215 in DTree table, I also get a list of Discussions(List 2) when I set DiscussionID talbe inner join Dtree table and choose SubType = 143. List 1 and List 2 are the same except two records. Why?Which SubType is for Discussion? What's the difference between SubType = 215 and SubType = 143?What's the SubType for Projects? Thank you.Shirley

Alex_Kowalenko_(akowalen_(Delete)_2285456)

Attached is a complete list of standard subtypes in Livelink 9.1. You know that this is a 9.1 list because a new subtype (218) for Poll is there.The difference between subtypes 215 and 143 is that the latter is a Discussion Volume. The Volume is a special kind of DTree entry. In this case it is the (grand)parent of all topics (130) and replies (134). Note that Projects (202) also have a volume counterpart (201), but they are called Project Workspace.