SQL SERVER 十六进制转十进制

Create PROCEDURE sp_hexadecimal
@binvalue varbinary(255),
@hexvalue varchar(255) OUTPUT
AS
DECLARE @charvalue varchar(255)
DECLARE @i int
DECLARE @length int
DECLARE @hexstring char(16)

SELECT @charvalue = ''
SELECT @i = 1
SELECT @length = DATALENGTH(@binvalue)
SELECT @hexstring = '0123456789abcdef'

WHILE (@i <= @length)
BEGIN
DECLARE @tempint int
DECLARE @firstint int
DECLARE @secondint int

SELECT @tempint = CONVERT(int, SUBSTRING(@binvalue,@i,1))
SELECT @firstint = FLOOR(@tempint/16)
SELECT @secondint = @tempint - (@firstint*16)
SELECT @charvalue = @charvalue +
SUBSTRING(@hexstring, @firstint+1, 1) +
SUBSTRING(@hexstring, @secondint+1, 1)
SELECT @i = @i + 1
END

SELECT @hexvalue = upper(@charvalue)