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汉字拼音首字母查询 Sql Function

时间:2021-07-01 10:21:17 帮助过:5人阅读

ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE FUNCTION [dbo].[F_SYS_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 AS word UNION ALL SELECT B,N簿 UNION ALL SELECT C,N UNION ALL SELECT D,N UNION ALL SELECT E,N UNION ALL SELECT F,N UNION ALL SELECT G,N UNION ALL SELECT H,N UNION ALL SELECT J,N UNION ALL SELECT K,N UNION ALL SELECT L,N UNION ALL SELECT M,N UNION ALL SELECT N,N UNION ALL SELECT O,N UNION ALL SELECT P,N UNION ALL SELECT Q,N UNION ALL SELECT R,N UNION ALL SELECT S,N UNION ALL SELECT T,N UNION ALL SELECT W,N UNION ALL SELECT X,N UNION ALL SELECT Y,N UNION ALL SELECT Z,N ) 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

 

汉字拼音首字母查询 Sql Function

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