create trigger updateRowVersion on PPM_JobBill
after insert,update,delete
as
begin
    declare @inserted int, @deleted int
    select @inserted=COUNT(*) from inserted
    select @deleted=COUNT(*) from deleted
    if @inserted>0 and @deleted=0
    begin
        --insert
    end
    else if @inserted>0 and @deleted>0
    begin
        --update
    end
    else if @inserted=0 and @deleted>0
    begin
        --delete
    end
end
go