create function whk_fun_getpy(@str nvarchar(4000))
returns nvarchar(4000)
asbegin
declare @word nchar(1),@py nvarchar(4000)
set @py=''
while len(@str)>0
begin
set @word=left(@str,1)
--如果非漢字字元，返回原字元
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'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'
) 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)
endreturn @py
end--函式呼叫例項：
select dbitrenji_f.whk_fun_getpy('中華人民共和國')
--結果都為：zhrmghg
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