sqlserver 獲取漢字拼音的首字母（大寫）函數

1：創建函數：

USE [test]
GO
/****** 對象:  UserDefinedFunction [dbo].[GetFirstChar]    腳本日期: 02/22/2019 16:39:06 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--創建中文截取字符函數
ALTER FUNCTION [dbo].[GetFirstChar](@ChineseString NVARCHAR(4000)) 
RETURNS NVARCHAR(4000) 
AS
BEGIN
 
DECLARE @SingleCharacter NCHAR(1),
@ReturnString NVARCHAR(4000) 
SET @ReturnString = '' 

WHILE LEN(@ChineseString)>0 
BEGIN

--依次取單個字符
SET @SingleCharacter = LEFT(@ChineseString,1) 

----漢字字符，返回字符對應首字母,非漢字字符,返回原字符
IF(UNICODE(@SingleCharacter) BETWEEN 19968 AND 19968+20901)
SET @ReturnString = @ReturnString + 
(SELECT TOP 1 PY FROM
(SELECT 'A' AS PY,N'驁' AS ChineseCharacters 
UNION All SELECT 'B',N'簿' 
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'曝' 
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' 
)SpellingTable 
where ChineseCharacters > = @SingleCharacter COLLATE Chinese_PRC_CS_AS_KS_WS 
ORDER by PY ASC)
ELSE
SET @ReturnString = @ReturnString + @SingleCharacter
SET @ChineseString = RIGHT(@ChineseString,LEN(@ChineseString)-1) 
END
RETURN @ReturnString 
END

2:看結果：

謝歡的童鞋點個贊那~