SQL to get the Chinese Initials

USE [JewelryRetailClientDB]
GO

/***** Object: UserDefinedFunction [dbo]. [Func_GetPY] Script Date: 10/19/2011 14:21:59 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

-- ===================================================== ======
-- Author: xoyozo
-- Create date: 2010-4-17
-- Description: The first letter of a Chinese character.
-- ===================================================== ======
Create function [dbo]. [Func_GetPY]
(
@ Str NVARCHAR (4000)
)
Returns nvarchar (4000)
AS
BEGIN
DECLARE @ word NCHAR (1), @ py nvarchar (4000)
SET @ PY =''
WHILE len (@ str)> 0
BEGIN
SET @ word = left (@ str, 1)
SET @ PY = @ PY + (case when unicode (@ word) BETWEEN 19968 AND 19968 + 20901
THEN (select top 1 py from (
SELECT 'A' as py, n' comment 'AS word
Union all select 'B', n''
Union all select 'C', n' then'
Union all select 'D', N 'region'
Union all select 'E', n' then'
Union all select 'F', n' then'
Union all select 'G', n' then'
Union all select 'h', N 'hour'
Union all select 'J', n' else'
Union all select 'k', n' then'
Union all select 'l', n' then'
Union all select 'M', n' then'
Union all select 'n', n' then'
Union all select 'O', n' then'
Union all select 'P', n' exposure'
Union all select 'Q', n' then'
Union all select 'R', N 'region'
Union all select's ', N 'region'
Union all select 'T', n' then'
Union all select 'w', N 'hangzhou'
Union all select 'x', n' then'
Union all select 'y', n' then'
Union all select 'Z', n' else'
) 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
GO