select all vertices with no incoming edges

[David de Sousa Seixas]

hi

  I'm trying to get all vertices that have no incoming edges. How do I do that?

thanks

[Giulia Brignoli]

Hi David,

try this query:

 select from V where @rid not in (select expand(out()) from V)

in this way you should find all the vertices that have no incoming edges.

Bye, Giulia

[Luigi Dell'Aquila]

Hi David,

you can also do this:

select from V were in().size() = 0

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[Luigi Dell'Aquila]

sorry, typo there ;-)

select from V WHERE in().size() = 0

[David de Sousa Seixas]

Thanks!