数据排列问题

CREATE TABLE [dbo].[ZHOU](
[A] [int] NULL,
[B] [int] NULL
) 
INSERT INTO ZHOU 
SELECT 1,0
UNION
SELECT 0,3
UNION 
SELECT 5,0
UNION
SELECT 0,2

想通过查询得到如下结果

1,0
0,2
0,3
5,0

[解决办法]

SELECT * 
FROM zhou
ORDER BY A+B ASC

/*
AB
10
02
03
50*/