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-- ÈÎÒâ½øÖÆת»»Îª10½øÖÆ
-- Àý 0FA ת»»Îª 16½øÖÆ select dbo.f_BinaryToInt('0123456789ABCDEF', '0FA')
CREATE   function   dbo.f_BinaryToInt(@BinaryFormate varchar(100), @num   varchar(200))  
--@BinaryFormate Ϊ×Ô¶¨ÒåµÄ½øÖƸñʽ
--@num ΪҪת»»³É10½øÖƵÄ×Ô¶¨Òå½øÖÆÊý
--16½øÖƸñʽ 0123456789ABCDEF
returns   DECIMAL(18, 0)
as  
BEGIN
 declare   @result   DECIMAL(18, 0), @Binary int, @V char(1), @len int, @value int
 SELECT   @result=0, @Binary = LEN(@BinaryFormate), @len = 0
 SET   @num   =   rtrim(ltrim(upper(reverse(@num))))     --Ϊ·½±ã¼ÆË㣬½«×Ö·û´®·´Ïò
 WHILE @len < LEN(@Num)
 BEGIN
  SET @V = SUBSTRING(@num, @len + 1, 1)
  SET @value = CHARINDEX(@v, @BinaryFormate) -1
  SET @result =  @value*power(@Binary, @len) + @result
  SET @len = @len + 1
 END
 return(@result)
END
-- 10½øÖÆת»»ÎªÈÎÒâ½øÖÆ
-- Àý 250 ת»»Îª 3λ16½øÖÆ select dbo.f_IntToBinary('0123456789ABCDEF', 250, 3)
CREATE   function   dbo.f_IntToBinary(@BinaryFormate varchar(100), @num   int, @len   int)  
--@BinaryFormate Ϊ×Ô¶¨ÒåµÄ½øÖƸñʽ
--@num ΪҪת»»³É×Ô¶¨Òå½øÖƵÄ10½øÖÆÊý
--@lenΪת»»ºóÕ¼ÓõÄλÊý
--16½øÖƸñʽ 0123456789ABCDEF
returns   varchar(200)  
as  
BEGIN
 declare   @result   varchar(200), @Binary int
 set   @result=''
 SET @Binary = LEN(@BinaryFormate)
 WHILE LEN(@result)<@len
  select   @result=substring(@BinaryFormate,@num%@Binary+1,1)+@result,@num=@num/@Binary  
 return(@result)
END


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