ряды до запятой отделили значения в MSSQL
DECLARE @test NVARCHAR(max)
SELECT @test = COALESCE(@test + ',', '') + field2 FROM #test
SELECT field2 = @test
Hungry Hamster
DECLARE @test NVARCHAR(max)
SELECT @test = COALESCE(@test + ',', '') + field2 FROM #test
SELECT field2 = @test