0

Please login or register to vote for this query.

(click on this box to dismiss)

Q&A for users and developers of the Cardano cryptocurrency ecosystem

select DISTINCT OwnerUserId
from Posts 
where PostTypeId= 2 and year(CreationDate)= 2014	-- из выборки ответов в 2014
EXCEPT                                            		   	-- убираем 
select DISTINCT  OwnerUserId                      	    	-- выборку вопросов в 2015
from Posts
where PostTypeId= 1 and year(CreationDate)= 2015

view current version

edited dec 3

created dec 3 jon.doe46476