MSSQL ½øÖÆ×ª»»
-- ÈÎÒâ½øÖÆ×ª»»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
-- 10½øÖÆ×ª»»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¶¨Òå½øÖÆµÄ10½øÖÆÊý
--@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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