mssql 按首字母搜索

作者: 来源: 日期:2010-4-16
select * from ERP_TravelProducts   
where left(dbo.fun_getPY(TP_Name),1)='w'  
  
create function 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
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