A trigger returned a resultset and/or was running with SET NOCOUNT OFF while another outstanding result set was active

Question

I have 2 servers connected over a low speed wan and we\'re running SQL Server 2008 with Merge replication.

At the subscriber, sometimes when attempting to insert new row

Answer 1

I had the same problem.

The problem was an insert with select:

insert into table (...)
select ...

The problem was that select had a group statements and returned:

Warning: Null value is eliminated by an aggregate or other SET operation.

this causing the problem, I changed instructions max(field) by max(coalesce(field,'')) to avoid the null operation in max group function.