--创建函数
create function [dbo].[hex](@cardno int )
returns varchar (100)
as
begin
declare @temp_mod int
declare @i int
declare @result varchar(100)
declare @temp_x int
declare @result_values int
set @result=‘‘
set @i=1
set @temp_x=0
while @cardno>0
begin
set @temp_mod=@cardno%16
set @cardno=@cardno/16
set @result=(case @temp_mod when 10 then ‘A‘
when 11 then ‘B‘
when 12 then ‘C‘
when 13 then ‘D‘
when 14 then ‘E‘
when 15 then ‘F‘
else ltrim(str(@temp_mod)) end )+@result
end
return @result
end
--测试示例
select [dbo].[hex](1808) as Hex
--运行结果
/*
Hex
----------
710
*/
--第二版
/****************************
整数转换成进制
作者：不得闲
QQ: 75492895
Email: appleak46@yahoo.com.cn
****************************/
Create Function IntToHex(@IntNum int)
returns varchar(16)
as
begin
declare @Mods int,@res varchar(16)
set @res=‘‘
while @IntNum <> 0
begin
set @Mods =@IntNum % 16
if @Mods > 9
set @res = Char(Ascii(‘A‘)+@Mods-10)+@res
else
set @res = Cast(@Mods as varchar(4)) + @res
set @IntNum = @IntNum/16
end
return @res
end
--测试示例
select dbo.IntToHex(1808)
--运行结果
/*
710
*/
原文：http://www.cnblogs.com/accumulater/p/6244455.html