SQLServer 将文字转换成拼音首字母方法_sql server 中文变拼音首字母

CREATE  function  fn_GetPYM(@str  nvarchar(4000))  
 
  returns  nvarchar(4000)  
 
  --WITH  ENCRYPTION  
 
  as  
 
  begin  
 
  declare  @intLen int  
 
  declare  @strRet nvarchar(4000)  
 
  declare  @temp  nvarchar(100)  
 
  set  @intLen  =  len(@str)  
 
  set  @strRet  =  ''  
 
  while  @intLen  >  0  
 
  begin  
 
  set  @temp  =  ''  
 
  select  @temp  =  case    
 
  when  substring(@str,@intLen,1)  >=  '帀'  then  'Z'  
 
  when  substring(@str,@intLen,1)  >=  '丫'  then  'Y'  
 
  when  substring(@str,@intLen,1)  >=  '夕'  then  'X'  
 
  when  substring(@str,@intLen,1)  >=  '屲'  then  'W' 
 
    WHEN  substring(@str,@intLen,1) = 'U' THEN 'U'
 
    WHEN  substring(@str,@intLen,1) = 'V' THEN 'V' 
 
  when  substring(@str,@intLen,1)  >=  '他'  then  'T'  
 
  when  substring(@str,@intLen,1)  >=  '仨'  then  'S'  
 
  when  substring(@str,@intLen,1)  >=  '呥'  then  'R'  
 
  when  substring(@str,@intLen,1)  >=  '七'  then  'Q'  
 
  when  substring(@str,@intLen,1)  >=  '妑'  then  'P'  
 
  when  substring(@str,@intLen,1)  >=  '噢'  then  'O'  
 
  when  substring(@str,@intLen,1)  >=  '拏'  then  'N'  
 
  when  substring(@str,@intLen,1)  >=  '嘸'  then  'M'  
 
  when  substring(@str,@intLen,1)  >=  '垃'  then  'L'  
 
  when  substring(@str,@intLen,1)  >=  '咔'  then  'K'  
 
  when  substring(@str,@intLen,1)  >=  '丌'  then  'J'  
 
    WHEN  substring(@str,@intLen,1) = 'I' THEN 'I'
 
  when  substring(@str,@intLen,1)  >=  '铪'  then  'H'  
 
  when  substring(@str,@intLen,1)  >=  '旮'  then  'G'  
 
  when  substring(@str,@intLen,1)  >=  '发'  then  'F'  
 
  when  substring(@str,@intLen,1)  >=  '妸'  then  'E'  
 
  when  substring(@str,@intLen,1)  >=  '咑'  then  'D'  
 
  when  substring(@str,@intLen,1)  >=  '嚓'  then  'C'  
 
  when  substring(@str,@intLen,1)  >=  '八'  then  'B'  
 
  when  substring(@str,@intLen,1)  >=  '吖'  then  'A'  
 
  else  rtrim(ltrim(substring(@str,@intLen,1)))  ----去除左右空格
 
  end  
 
  --对于汉字特殊字符，不生成拼音码  
 
  if  (ascii(@temp)>127)  set  @temp  =  '' 
 
  --对于英文中小括号，不生成拼音码  
 
  if  @temp  =  '('  or  @temp  =  ')' set  @temp  =  ''
 
  select  @strRet  =  @temp  +  @strRet  
 
  set  @intLen  =  @intLen  -  1  
 
  end  
 
  return  UPPER(@strRet)  --转化大写，如需要转换小写可使用lower函数
 
  end  

DECLARE @testString VARCHAR(100)
SET @testString = 'I LOVE YOU 中华人民共和国万岁   '
select dbo.f_getpym(@testString) AS testString的拼音码