文字列 '00011001010010000000000000000000'を '0x98120000'に変換する方法はありますか？

Question

私はMS SQL Server 2008を使用しています： '0x98120000'を文字列'00011001010010000000000000000000'に変換します。 逆の変換方法。

私を助けてください。ありがとう。

Answer 1

declare @t binary(4) 
    set @t = 0x98120000 

    -- Out string : '00011001010010000000000000000000' 
    Select REVERSE(REPLICATE('0',8-DATALENGTH(dbo.DecimalToBinary(CONVERT(tinyint,0xFF) & SUBSTRING(@t,1,1))))+dbo.DecimalToBinary(CONVERT(tinyint,0xFF) & SUBSTRING(@t,1,1)))+''+ 
      REVERSE(REPLICATE('0',8-DATALENGTH(dbo.DecimalToBinary(CONVERT(tinyint,0xFF) & SUBSTRING(@t,2,1))))+dbo.DecimalToBinary(CONVERT(tinyint,0xFF) & SUBSTRING(@t,2,1)))+''+ 
      REVERSE(REPLICATE('0',8-DATALENGTH(dbo.DecimalToBinary(CONVERT(tinyint,0xFF) & SUBSTRING(@t,3,1))))+dbo.DecimalToBinary(CONVERT(tinyint,0xFF) & SUBSTRING(@t,3,1)))+''+ 
      REVERSE(REPLICATE('0',8-DATALENGTH(dbo.DecimalToBinary(CONVERT(tinyint,0xFF) & SUBSTRING(@t,4,1))))+dbo.DecimalToBinary(CONVERT(tinyint,0xFF) & SUBSTRING(@t,4,1))) As [String] 

    --Out String binary : 0x98120000 
    Declare @String varchar(200) 
    Set @String='00011001010010000000000000000000' 
    Select Cast([dbo].[BinaryToDecimal](REVERSE(SUBSTRING(@String,1,8))) as binary(1))+ 
      Cast([dbo].[BinaryToDecimal](REVERSE(SUBSTRING(@String,9,8))) as binary(1))+ 
      Cast([dbo].[BinaryToDecimal](REVERSE(SUBSTRING(@String,17,8))) as binary(1))+ 
      Cast([dbo].[BinaryToDecimal](REVERSE(SUBSTRING(@String,25,8))) as binary(1)) as [ChangeBinary] 

***関数[DBO]。[DecimalToBinary] ****

CREATE FUNCTION [dbo].[DecimalToBinary] 
(
    @Input bigint 
) 
RETURNS varchar(5000) 
AS 
BEGIN 
    DECLARE @Output varchar(5000) = '' 
    WHILE @Input > 0 
    BEGIN 
     SET @Output = @Output + CAST((@Input % 2) AS varchar) 
     SET @Input = @Input/2 
    END 
    RETURN REVERSE(@Output) 
END 

***** FUNCTION [DBO]。[BinaryToDecimal] *****

CREATE FUNCTION [dbo].[BinaryToDecimal] 
(
@Input varchar(255) 
) 
RETURNS bigint 
AS 
BEGIN 
DECLARE @Cnt tinyint = 1 
DECLARE @Len tinyint = LEN(@Input) 
DECLARE @Output bigint = CAST(SUBSTRING(@Input, @Len, 1) AS bigint) 
WHILE(@Cnt < @Len) 
BEGIN 
    SET @Output = @Output + POWER(CAST(SUBSTRING(@Input, @Len - @Cnt, 1) * 2 AS bigint), @Cnt) 
    SET @Cnt = @Cnt + 1 
END 
RETURN @Output 
END