Hi all,
Maybe this is a simple question for you but I was not able to find any
answer.
I have some vertices of class 'product' which can be 'viewed', 'ordered' by
'user'.
My problem is that I want to get all product where 'viewed' by specific
user, and it's has not been 'ordered' by any user.
Eg: ProductA <-viewed- User1
ProductB <-viewed- User1
ProductC <-viewed- User1
ProductC <-ordered- User1
ProductD <-viewed- User1
ProductD <-viewed- User2
ProductD <-ordered- User2
Input: User1
Expected result:ProductA, ProductB
Note: ProductC and ProductD don't exist in result set because they were
'ordered' by User1, User2.
I want to get it by using SQL or Match command.
Thanks,
Tan
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