作用：

        将汉字生成为全拼音或者首字母，示例

• 执行自定义函数，将汉字转成对应的首字母

• 执行自定义函数，将汉字转成全拼音

自定义教程：

        一，只取汉字的首字母 代码如下：

                执行下面sql 就自定义函数了

View Code 
SET  ANSI_NULLS ON
SET  QUOTED_IDENTIFIER ON
goCREATE   FUNCTION  [dbo].[fun_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) --如果非汉字字符，返回原字符 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) END RETURN @PY
END GOSELECT dbo.fun_getPY('来1吧')

执行完上面sql,执行下面：

SELECT dbo.fun_getPY('来1吧')-- 得到：L1B

二，另一种是取汉字胡全拼 代码如下：

CREATE function [dbo].[fn_GetPinyin](@words nVARCHAR(2000))   
RETURNS VARCHAR(8000)   
AS   BEGIN DECLARE @word nchar(1) DECLARE @pinyin VARCHAR(8000) DECLARE @i INTDECLARE @words_len INTDECLARE @unicode INTSET @i = 1 SET @words =ltrim(rtrim(@words)) SET @words_len =len(@words) WHILE(@i <= @words_len)--循环取字符BEGIN SET @word =substring(@words, @i, 1) SET @unicode =unicode(@word) SET @pinyin =ISNULL(@pinyin +SPACE(1),'')+ (CASE WHEN unicode(@word)between 19968 and 19968+20901 then  (SELECT TOP  1 py FROM ( SELECT'a'AS py,N'厑'AS word UNION ALL SELECT 'ai',N'靉'UNION ALL SELECT'an',N'黯'UNION ALL SELECT'ang',N'醠'UNION ALL SELECT'ao',N'驁'UNION ALL SELECT'ba',N'欛'UNION ALL SELECT'bai',N'瓸'--韛兡瓸UNION ALL SELECT'ban',N'瓣'UNION ALL SELECT'bang',N'鎊'UNION ALL SELECT'bao',N'鑤'UNION ALL SELECT'bei',N'鐾'UNION ALL SELECT'ben',N'輽'UNION ALL SELECT'beng',N'鏰'UNION ALL SELECT'bi',N'鼊'UNION ALL SELECT'bian',N'變'UNION ALL SELECT'biao',N'鰾'UNION ALL SELECT'bie',N'彆'UNION ALL SELECT'bin',N'鬢'UNION ALL SELECT'bing',N'靐'UNION ALL SELECT'bo',N'蔔'UNION ALL SELECT'bu',N'簿'UNION ALL SELECT'ca',N'囃'UNION ALL SELECT'cai',N'乲'--縩乲UNION ALL SELECT'can',N'爘'UNION ALL SELECT'cang',N'賶'UNION ALL SELECT'cao',N'鼜'UNION ALL SELECT'ce',N'簎'UNION ALL SELECT'cen',N'笒'UNION ALL SELECT'ceng',N'乽'--硛硳岾猠乽UNION ALL SELECT'cha',N'詫'UNION ALL SELECT'chai',N'囆'UNION ALL SELECT'chan',N'顫'UNION ALL SELECT'chang',N'韔'UNION ALL SELECT'chao',N'觘'UNION ALL SELECT'che',N'爡'UNION ALL SELECT'chen',N'讖'UNION ALL SELECT'cheng',N'秤'UNION ALL SELECT'chi',N'鷘'UNION ALL SELECT'chong',N'銃'UNION ALL SELECT'chou',N'殠'UNION ALL SELECT'chu',N'矗'UNION ALL SELECT'chuai',N'踹'UNION ALL SELECT'chuan',N'鶨'UNION ALL SELECT'chuang',N'愴'UNION ALL SELECT'chui',N'顀'UNION ALL SELECT'chun',N'蠢'UNION ALL SELECT'chuo',N'縒'UNION ALL SELECT'ci',N'嗭'--賜嗭UNION ALL SELECT'cong',N'謥'UNION ALL SELECT'cou',N'輳'UNION ALL SELECT'cu',N'顣'UNION ALL SELECT'cuan',N'爨'UNION ALL SELECT'cui',N'臎'UNION ALL SELECT'cun',N'籿'UNION ALL SELECT'cuo',N'錯'UNION ALL SELECT'da',N'橽'UNION ALL SELECT'dai',N'靆'UNION ALL SELECT'dan',N'饏'UNION ALL SELECT'dang',N'闣'UNION ALL SELECT'dao',N'纛'UNION ALL SELECT'de',N'的'UNION ALL SELECT'den',N'扽'UNION ALL SELECT'deng',N'鐙'UNION ALL SELECT'di',N'螮'UNION ALL SELECT'dia',N'嗲'UNION ALL SELECT'dian',N'驔'UNION ALL SELECT'diao',N'鑃'UNION ALL SELECT'die',N'嚸'--眰嚸UNION ALL SELECT'ding',N'顁'UNION ALL SELECT'diu',N'銩'UNION ALL SELECT'dong',N'霘'UNION ALL SELECT'dou',N'鬭'UNION ALL SELECT'du',N'蠹'UNION ALL SELECT'duan',N'叾'--籪叾UNION ALL SELECT'dui',N'譵'UNION ALL SELECT'dun',N'踲'UNION ALL SELECT'duo',N'鵽'UNION ALL SELECT'e',N'鱷'UNION ALL SELECT'en',N'摁'UNION ALL SELECT'eng',N'鞥'UNION ALL SELECT'er',N'樲'UNION ALL SELECT'fa',N'髮'UNION ALL SELECT'fan',N'瀪'UNION ALL SELECT'fang',N'放'UNION ALL SELECT'fei',N'靅'UNION ALL SELECT'fen',N'鱝'UNION ALL SELECT'feng',N'覅'UNION ALL SELECT'fo',N'梻'UNION ALL SELECT'fou',N'鴀'UNION ALL SELECT'fu',N'猤'--鰒猤UNION ALL SELECT'ga',N'魀'UNION ALL SELECT'gai',N'瓂'UNION ALL SELECT'gan',N'灨'UNION ALL SELECT'gang',N'戇'UNION ALL SELECT'gao',N'鋯'UNION ALL SELECT'ge',N'獦'UNION ALL SELECT'gei',N'給'UNION ALL SELECT'gen',N'搄'UNION ALL SELECT'geng',N'堩'--亙堩啹喼嗰UNION ALL SELECT'gong',N'兣'--熕贑兝兣UNION ALL SELECT'gou',N'購'UNION ALL SELECT'gu',N'顧'UNION ALL SELECT'gua',N'詿'UNION ALL SELECT'guai',N'恠'UNION ALL SELECT'guan',N'鱹'UNION ALL SELECT'guang',N'撗'UNION ALL SELECT'gui',N'鱥'UNION ALL SELECT'gun',N'謴'UNION ALL SELECT'guo',N'腂'UNION ALL SELECT'ha',N'哈'UNION ALL SELECT'hai',N'饚'UNION ALL SELECT'han',N'鶾'UNION ALL SELECT'hang',N'沆'UNION ALL SELECT'hao',N'兞'UNION ALL SELECT'he',N'靏'UNION ALL SELECT'hei',N'嬒'UNION ALL SELECT'hen',N'恨'UNION ALL SELECT'heng',N'堼'--堼囍UNION ALL SELECT'hong',N'鬨'UNION ALL SELECT'hou',N'鱟'UNION ALL SELECT'hu',N'鸌'UNION ALL SELECT'hua',N'蘳'UNION ALL SELECT'huai',N'蘾'UNION ALL SELECT'huan',N'鰀'UNION ALL SELECT'huang',N'鎤'UNION ALL SELECT'hui',N'顪'UNION ALL SELECT'hun',N'諢'UNION ALL SELECT'huo',N'夻'UNION ALL SELECT'ji',N'驥'UNION ALL SELECT'jia',N'嗧'UNION ALL SELECT'jian',N'鑳'UNION ALL SELECT'jiang',N'謽'UNION ALL SELECT'jiao',N'釂'UNION ALL SELECT'jie',N'繲'UNION ALL SELECT'jin',N'齽'UNION ALL SELECT'jing',N'竸'UNION ALL SELECT'jiong',N'蘔'UNION ALL SELECT'jiu',N'欍'UNION ALL SELECT'ju',N'爠'UNION ALL SELECT'juan',N'羂'UNION ALL SELECT'jue',N'钁'UNION ALL SELECT'jun',N'攈'UNION ALL SELECT'ka',N'鉲'UNION ALL SELECT'kai',N'乫'--鎎乫UNION ALL SELECT'kan',N'矙'UNION ALL SELECT'kang',N'閌'UNION ALL SELECT'kao',N'鯌'UNION ALL SELECT'ke',N'騍'UNION ALL SELECT'ken',N'褃'UNION ALL SELECT'keng',N'鏗'--巪乬唟厼怾UNION ALL SELECT'kong',N'廤'UNION ALL SELECT'kou',N'鷇'UNION ALL SELECT'ku',N'嚳'UNION ALL SELECT'kua',N'骻'UNION ALL SELECT'kuai',N'鱠'UNION ALL SELECT'kuan',N'窾'UNION ALL SELECT'kuang',N'鑛'UNION ALL SELECT'kui',N'鑎'UNION ALL SELECT'kun',N'睏'UNION ALL SELECT'kuo',N'穒'UNION ALL SELECT'la',N'鞡'UNION ALL SELECT'lai',N'籟'UNION ALL SELECT'lan',N'糷'UNION ALL SELECT'lang',N'唥'UNION ALL SELECT'lao',N'軂'UNION ALL SELECT'le',N'餎'UNION ALL SELECT'lei',N'脷'--嘞脷UNION ALL SELECT'leng',N'睖'UNION ALL SELECT'li',N'瓈'UNION ALL SELECT'lia',N'倆'UNION ALL SELECT'lian',N'纞'UNION ALL SELECT'liang',N'鍄'UNION ALL SELECT'liao',N'瞭'UNION ALL SELECT'lie',N'鱲'UNION ALL SELECT'lin',N'轥'--轥拎UNION ALL SELECT'ling',N'炩'UNION ALL SELECT'liu',N'咯'--瓼甅囖咯UNION ALL SELECT'long',N'贚'UNION ALL SELECT'lou',N'鏤'UNION ALL SELECT'lu',N'氇'UNION ALL SELECT'lv',N'鑢'UNION ALL SELECT'luan',N'亂'UNION ALL SELECT'lue',N'擽'UNION ALL SELECT'lun',N'論'UNION ALL SELECT'luo',N'鱳'UNION ALL SELECT'ma',N'嘛'UNION ALL SELECT'mai',N'霢'UNION ALL SELECT'man',N'蘰'UNION ALL SELECT'mang',N'蠎'UNION ALL SELECT'mao',N'唜'UNION ALL SELECT'me',N'癦'--癦呅UNION ALL SELECT'mei',N'嚜'UNION ALL SELECT'men',N'們'UNION ALL SELECT'meng',N'霥'--霿踎UNION ALL SELECT'mi',N'羃'UNION ALL SELECT'mian',N'麵'UNION ALL SELECT'miao',N'廟'UNION ALL SELECT'mie',N'鱴'--鱴瓱UNION ALL SELECT'min',N'鰵'UNION ALL SELECT'ming',N'詺'UNION ALL SELECT'miu',N'謬'UNION ALL SELECT'mo',N'耱'--耱乮UNION ALL SELECT'mou',N'麰'--麰蟱UNION ALL SELECT'mu',N'旀'UNION ALL SELECT'na',N'魶'UNION ALL SELECT'nai',N'錼'UNION ALL SELECT'nan',N'婻'UNION ALL SELECT'nang',N'齉'UNION ALL SELECT'nao',N'臑'UNION ALL SELECT'ne',N'呢'UNION ALL SELECT'nei',N'焾'--嫩焾UNION ALL SELECT'nen',N'嫩'UNION ALL SELECT'neng',N'能'--莻嗯鈪銰啱UNION ALL SELECT'ni',N'嬺'UNION ALL SELECT'nian',N'艌'UNION ALL SELECT'niang',N'釀'UNION ALL SELECT'niao',N'脲'UNION ALL SELECT'nie',N'钀'UNION ALL SELECT'nin',N'拰'UNION ALL SELECT'ning',N'濘'UNION ALL SELECT'niu',N'靵'UNION ALL SELECT'nong',N'齈'UNION ALL SELECT'nou',N'譳'UNION ALL SELECT'nu',N'搙'UNION ALL SELECT'nv',N'衄'UNION ALL SELECT'nue',N'瘧'UNION ALL SELECT'nuan',N'燶'--硸黁燶郍UNION ALL SELECT'nuo',N'桛'UNION ALL SELECT'o',N'鞰'--毮夞乯鞰UNION ALL SELECT'ou',N'漚'UNION ALL SELECT'pa',N'袙'UNION ALL SELECT'pai',N'磗'--鎃磗UNION ALL SELECT'pan',N'鑻'UNION ALL SELECT'pang',N'胖'UNION ALL SELECT'pao',N'礮'UNION ALL SELECT'pei',N'轡'UNION ALL SELECT'pen',N'喯'UNION ALL SELECT'peng',N'喸'--浌巼闏乶喸UNION ALL SELECT'pi',N'鸊'UNION ALL SELECT'pian',N'騙'UNION ALL SELECT'piao',N'慓'UNION ALL SELECT'pie',N'嫳'UNION ALL SELECT'pin',N'聘'UNION ALL SELECT'ping',N'蘋'UNION ALL SELECT'po',N'魄'UNION ALL SELECT'pou',N'哛'--兺哛UNION ALL SELECT'pu',N'曝'UNION ALL SELECT'qi',N'蟿'UNION ALL SELECT'qia',N'髂'UNION ALL SELECT'qian',N'縴'UNION ALL SELECT'qiang',N'瓩'--羻兛瓩UNION ALL SELECT'qiao',N'躈'UNION ALL SELECT'qie',N'籡'UNION ALL SELECT'qin',N'藽'UNION ALL SELECT'qing',N'櫦'UNION ALL SELECT'qiong',N'瓗'UNION ALL SELECT'qiu',N'糗'UNION ALL SELECT'qu',N'覻'UNION ALL SELECT'quan',N'勸'UNION ALL SELECT'que',N'礭'UNION ALL SELECT'qun',N'囕'UNION ALL SELECT'ran',N'橪'UNION ALL SELECT'rang',N'讓'UNION ALL SELECT'rao',N'繞'UNION ALL SELECT're',N'熱'UNION ALL SELECT'ren',N'餁'UNION ALL SELECT'reng',N'陾'UNION ALL SELECT'ri',N'馹'UNION ALL SELECT'rong',N'穃'UNION ALL SELECT'rou',N'嶿'UNION ALL SELECT'ru',N'擩'UNION ALL SELECT'ruan',N'礝'UNION ALL SELECT'rui',N'壡'UNION ALL SELECT'run',N'橍'--橍挼UNION ALL SELECT'ruo',N'鶸'UNION ALL SELECT'sa',N'栍'--櫒栍UNION ALL SELECT'sai',N'虄'--簺虄UNION ALL SELECT'san',N'閐'UNION ALL SELECT'sang',N'喪'UNION ALL SELECT'sao',N'髞'UNION ALL SELECT'se',N'飋'--裇聓UNION ALL SELECT'sen',N'篸'UNION ALL SELECT'seng',N'縇'--閪縇UNION ALL SELECT'sha',N'霎'UNION ALL SELECT'shai',N'曬'UNION ALL SELECT'shan',N'鱔'UNION ALL SELECT'shang',N'緔'UNION ALL SELECT'shao',N'潲'UNION ALL SELECT'she',N'欇'UNION ALL SELECT'shen',N'瘮'UNION ALL SELECT'sheng',N'賸'UNION ALL SELECT'shi',N'瓧'--鰘齛兙瓧UNION ALL SELECT'shou',N'鏉'UNION ALL SELECT'shu',N'虪'UNION ALL SELECT'shua',N'誜'UNION ALL SELECT'shuai',N'卛'UNION ALL SELECT'shuan',N'腨'UNION ALL SELECT'shuang',N'灀'UNION ALL SELECT'shui',N'睡'UNION ALL SELECT'shun',N'鬊'UNION ALL SELECT'shuo',N'鑠'UNION ALL SELECT'si',N'乺'--瀃螦乺UNION ALL SELECT'song',N'鎹'UNION ALL SELECT'sou',N'瘶'UNION ALL SELECT'su',N'鷫'UNION ALL SELECT'suan',N'算'UNION ALL SELECT'sui',N'鐩'UNION ALL SELECT'sun',N'潠'UNION ALL SELECT'suo',N'蜶'UNION ALL SELECT'ta',N'襨'--躢襨UNION ALL SELECT'tai',N'燤'UNION ALL SELECT'tan',N'賧'UNION ALL SELECT'tang',N'燙'UNION ALL SELECT'tao',N'畓'--討畓UNION ALL SELECT'te',N'蟘'UNION ALL SELECT'teng',N'朰'--霯唞朰UNION ALL SELECT'ti',N'趯'UNION ALL SELECT'tian',N'舚'UNION ALL SELECT'tiao',N'糶'UNION ALL SELECT'tie',N'餮'UNION ALL SELECT'ting',N'乭'--濎乭UNION ALL SELECT'tong',N'憅'UNION ALL SELECT'tou',N'透'UNION ALL SELECT'tu',N'鵵'UNION ALL SELECT'tuan',N'褖'UNION ALL SELECT'tui',N'駾'UNION ALL SELECT'tun',N'坉'UNION ALL SELECT'tuo',N'籜'UNION ALL SELECT'wa',N'韤'UNION ALL SELECT'wai',N'顡'UNION ALL SELECT'wan',N'贎'UNION ALL SELECT'wang',N'朢'UNION ALL SELECT'wei',N'躛'UNION ALL SELECT'wen',N'璺'UNION ALL SELECT'weng',N'齆'UNION ALL SELECT'wo',N'齷'UNION ALL SELECT'wu',N'鶩'UNION ALL SELECT'xi',N'衋'UNION ALL SELECT'xia',N'鏬'UNION ALL SELECT'xian',N'鼸'UNION ALL SELECT'xiang',N'鱌'UNION ALL SELECT'xiao',N'斆'UNION ALL SELECT'xie',N'躞'UNION ALL SELECT'xin',N'釁'UNION ALL SELECT'xing',N'臖'UNION ALL SELECT'xiong',N'敻'UNION ALL SELECT'xiu',N'齅'UNION ALL SELECT'xu',N'蓿'UNION ALL SELECT'xuan',N'贙'UNION ALL SELECT'xue',N'瀥'UNION ALL SELECT'xun',N'鑂'UNION ALL SELECT'ya',N'齾'UNION ALL SELECT'yan',N'灩'UNION ALL SELECT'yang',N'樣'UNION ALL SELECT'yao',N'鑰'UNION ALL SELECT'ye',N'岃'--鸈膶岃UNION ALL SELECT'yi',N'齸'UNION ALL SELECT'yin',N'檼'UNION ALL SELECT'ying',N'譍'UNION ALL SELECT'yo',N'喲'UNION ALL SELECT'yong',N'醟'UNION ALL SELECT'you',N'鼬'UNION ALL SELECT'yu',N'爩'UNION ALL SELECT'yuan',N'願'UNION ALL SELECT'yue',N'鸙'UNION ALL SELECT'yun',N'韻'UNION ALL SELECT'za',N'雥'UNION ALL SELECT'zai',N'縡'UNION ALL SELECT'zan',N'饡'UNION ALL SELECT'zang',N'臟'UNION ALL SELECT'zao',N'竈'UNION ALL SELECT'ze',N'稄'UNION ALL SELECT'zei',N'鱡'UNION ALL SELECT'zen',N'囎'UNION ALL SELECT'zeng',N'贈'UNION ALL SELECT'zha',N'醡'UNION ALL SELECT'zhai',N'瘵'UNION ALL SELECT'zhan',N'驏'UNION ALL SELECT'zhang',N'瞕'UNION ALL SELECT'zhao',N'羄'UNION ALL SELECT'zhe',N'鷓'UNION ALL SELECT'zhen',N'黮'UNION ALL SELECT'zheng',N'證'UNION ALL SELECT'zhi',N'豒'UNION ALL SELECT'zhong',N'諥'UNION ALL SELECT'zhou',N'驟'UNION ALL SELECT'zhu',N'鑄'UNION ALL SELECT'zhua',N'爪'UNION ALL SELECT'zhuai',N'跩'UNION ALL SELECT'zhuan',N'籑'UNION ALL SELECT'zhuang',N'戅'UNION ALL SELECT'zhui',N'鑆'UNION ALL SELECT'zhun',N'稕'UNION ALL SELECT'zhuo',N'籱'UNION ALL SELECT'zi',N'漬'--漬唨UNION ALL SELECT'zong',N'縱'UNION ALL SELECT'zou',N'媰'UNION ALL SELECT'zu',N'謯'UNION ALL SELECT'zuan',N'攥'UNION ALL SELECT'zui',N'欈'UNION ALL SELECT'zun',N'銌'UNION ALL SELECT'zuo',N'咗') t  WHERE  word >= @word COLLATE  Chinese_PRC_CS_AS_KS_WS  ORDER BY  word COLLATE  Chinese_PRC_CS_AS_KS_WS ASC)ELSE  @word END ) SET @i = @i + 1 END  RETURN  @pinyin   END   GO
SELECT dbo.fn_GetPinyin('阿门')

 执行完上面SQL ,执行下面sql

SELECT dbo.fn_GetPinyin('阿门')-- 得到：a men