SQL ÖÐÎÄתƴÒô

--º¯ÊýÈçÏ£º
/*
CREATE FUNCTION dbo.fnpbGetPYFirstLetter 
( 
@str NVARCHAR(4000) 
) 
RETURNS NVARCHAR(4000) 
--WITH ENCRYPTION 
AS 
BEGIN 
DECLARE @WORD NCHAR(1),@PY NVARCHAR(4000)
SET @PY=''
WHILE LEN(@STR)>0 
BEGIN 
SET @WORD=LEFT(@STR,1)
--Èç¹û·Çºº×Ö×Ö·û£¬·µ»ØÔ­×Ö·û 
SET @PY=@PY+(CASE WHEN UNICODE(@WORD) BETWEEN 19968 AND 19968+20901 
THEN ( 
SELECT TOP 1 PY 
from 
( 
SELECT 'A' AS PY,N'驁' AS WORD 
UNION ALL SELECT 'B',N'²¾' 
UNION ALL SELECT 'C',N'錯' 
UNION ALL SELECT 'D',N'鵽' 
UNION ALL SELECT 'E',N'樲' 
UNION ALL SELECT 'F',N'鰒' 
UNION ALL SELECT 'G',N'腂' 
UNION ALL SELECT 'H',N'夻' 
UNION ALL SELECT 'J',N'攈' 
UNION ALL SELECT 'K',N'穒' 
UNION ALL SELECT 'L',N'鱳' 
UNION ALL SELECT 'M',N'旀' 
UNION ALL SELECT 'N',N'桛' 
UNION ALL SELECT 'O',N'漚' 
UNION ALL SELECT 'P',N'ÆØ' 
UNION ALL SELECT 'Q',N'囕' 
UNION ALL SELECT 'R',N'鶸' 
UNION ALL SELECT 'S',N'蜶' 
UNION ALL SELECT 'T',N'籜' 
UNION ALL SELECT 'W',N'鶩' 
UNION ALL SELECT 'X',N'鑂' 
UNION ALL SELECT 'Y',N'韻' 
UNION ALL SELECT 'Z',N'咗' 
) T 
WHERE WORD>=@WORD COLLATE CHINESE_PRC_CS_AS_KS_WS 
ORDER BY PY ASC 
) 
ELSE @WORD 
END) 
SET @STR=RIGHT(@STR,LEN(@STR)-1) 
END
RETURN @PY
END
 
 
*/
 
µ÷ÓÃʾÀý£º
 
--City PinYin
select dbo.fnpbGetPYFirstLetter('ÉϺ£ÊÐ')
Result: "SHS"