怎么把某字段单词的首字母改为大写其它小写？

要改某字段的内容，要求改为大写的情况：
1、字段首字母
2、空格后的首字母
3、“-”后的首字母
其它都改为小写。

例如有表
id name
1 aBC EFG
2 hij-klm
3 NOPQ

我需要的结果：
id name
1 Abc Efg
2 Hij-Klm
3 Nopq
---------------------------------
-- Author: liangCK 小梁
---------------------------------

--> 生成测试数据: @T
DECLARE @T TABLE (id INT,name VARCHAR(50))
INSERT INTO @T
SELECT 1,'aBC EFG' UNION ALL
SELECT 2,'hij-klm' UNION ALL
SELECT 3,'NOPQ'

--SQL查询如下:

;WITH Liang AS
(
SELECT
M.id,
SUBSTRING(M.name,N.number,1) AS s,
number
FROM @T AS M
JOIN master.dbo.spt_values AS N
ON number BETWEEN 1 AND LEN(M.name)
AND N.type='p'
)
UPDATE A SET
name=B.string.value('.','VARCHAR(max)')
FROM @T AS A
CROSS APPLY (
SELECT string=(
SELECT
CASE WHEN number=1 OR
(SELECT s
FROM Liang
WHERE id=T.idAND number=T.number-1) IN(' ','-')
THEN UPPER(s)
ELSE LOWER(s) END
FROM Liang AS T
WHERE id=A.id
FOR XML PATH(''),TYPE
)
) AS B

SELECT * FROM @t

/*
id name
----------- --------------------------------------------------
1 Abc Efg
2 Hij-Klm
3 Nopq

(3 行受影响)
*/

------------------------------------------------------------------------
-- Author: happyflystone
-- Date : 2009-03-16 10:35:16
-- Ver: Microsoft SQL Server 2005 - 9.00.2047.00 (Intel X86)
-- Apr 14 2006 01:12:25
-- Copyright (c) 1988-2005 Microsoft Corporation
-- Standard Edition on Windows NT 5.0 (Build 2195: Service Pack 4)
--
------------------------------------------------------------------------

-- Test Data: ta
IF OBJECT_ID('ta') IS NOT NULL
DROP TABLE ta
Go
CREATE TABLE ta(id INT,name NVARCHAR(7))
Go
INSERT INTO ta
SELECT 1,'aBC' UNION ALL
SELECT 2,'hij-klm' UNION ALL
SELECT 3,'NOPQ'
GO
--Start
create function f_s(@s nvarchar(20))
returns varchar(20)
as
begin
set @s = lower(@s)
declare @I int
set @I = 1
while right(left(@s,@i),1) in (' ','-')
set @I = @I + 1
return left(@s,@I -1) + char(ascii(substring(@s,@i,1))- 32)+ right(@s,len(@s) -@i)
end
go
SELECT
*,dbo.f_s(name)
FROM
TA
drop function f_s

--Result:
/*
id name
----------- ------- --------------------
1 aBC Abc
2 hij-klm Hij-klm
3 NOPQ Nopq

*/
--End