SQL 字符 数字 转换字母

1、将字符中数字转换为中文大写的数字，

注意

100==>一零零   而非==>一百

123==>一二三   而非==>一百二十三

CREATE FUNCTION Fn_NumberConvertChinase(@number NVARCHAR(50))
RETURNS NVARCHAR(20)
AS
BEGIN
DECLARE @res NVARCHAR(20)
DECLARE @char CHAR(1)
SET @res = ''
SET @char = substring(@number,1,1)
SELECT @res = (CASE @charWHEN '1' THEN '一'WHEN '2' THEN '二'WHEN '3' THEN '三'WHEN '4' THEN '四'WHEN '5' THEN '五'WHEN '6' THEN '六'WHEN '7' THEN '七'WHEN '8' THEN '八'WHEN '9' THEN '九'WHEN '0' THEN '零'ELSE substring(@number,1,1) END 
)
IF(len(@number) > 1)
BEGINSET @res =  @res + dbo.fn_numberconvertchinase(substring(@number,2,len(@number)-1))
END
RETURN @res 
END

2、获取字符首字母，并转大写

CREATE FUNCTION Fn_GetPy(@str NVARCHAR(4000))
RETURNS NVARCHAR(4000)
AS
BEGINDECLARE @strlen INT;DECLARE @re NVARCHAR(4000);--字符中数字转大写SELECT @str=dbo.fn_numberconvertchinase(@str);DECLARE @t table(chr nchar(1) collate Chinese_PRC_CI_AS,letter nchar(1))INSERT INTO @t(chr,letter)SELECT '吖','A' UNION ALL SELECT '八','B' UNION ALLSELECT '嚓','C' UNION ALL SELECT '咑','D' UNION ALLSELECT '妸','E' UNION ALL SELECT '发','F' UNION ALLSELECT '旮','G' UNION ALL SELECT '铪','H' UNION ALLSELECT '丌','J' UNION ALL SELECT '咔','K' UNION ALLSELECT '垃','L' UNION ALL SELECT '嘸','M' UNION ALLSELECT '拏','N' UNION ALL SELECT '噢','O' UNION ALLSELECT '妑','P' UNION ALL SELECT '七','Q' UNION ALLSELECT '呥','R' UNION ALL SELECT '仨','S' UNION ALLSELECT '他','T' UNION ALL SELECT '屲','W' UNION ALLSELECT '夕','X' UNION ALL SELECT '丫','Y' UNION ALLSELECT '帀','Z';SELECT @strlen=len(@str),@re='';WHILE @strlen>0BEGINSELECT TOP 1 @re=letter+@re,@strlen=@strlen-1FROM @t a WHERE chr<=substring(@str,@strlen,1)ORDER BY chr DESCIF @@rowcount=0SELECT @re=substring(@str,@strlen,1)+@re,@strlen=@strlen-1ENDRETURN(UPPER(@re))
END