Updated: 27 August 2010
Use DEC2BIN to convert a decimal number to binary.
Syntax
SELECT [wctEngineering].[wct].[DEC2BIN] (
<@Number, float,>
,<@Places, float,>)
Arguments
@Number
is the decimal integer you want to convert. If @Number is negative, valid @Places values are ignored and DEC2BIN returns a 10-character (10-bit) binary number in which the most significant bit is the sign bit. The remaining 9 bits are magnitude bits. Negative numbers are represented using two's-complement notation. @Number is an expression of type float or of a type that can be implicitly converted to float.
@Places
The number of characters to use. If @Places is NULL, DEC2BIN uses the minimum number of characters necessary. @Places is useful for padding the return value with leading 0s (zeros). @Places is an expression of type float or of a type that can be implicitly converted to float.
Return Types
varchar(4000)
Remarks
· If @Number is less than -512 or @Number is greater than 511, DEC2BIN returns an error.
· If @Number is negative, DEC2BIN ignores places and returns a 10-character binary number.
· @Places is truncated to zero decimal places.
Examples
select wct.DEC2BIN(-512, NULL)
This produces the following result
-------------------------------
1000000000
(1 row(s) affected)
select wct.DEC2BIN(511, NULL)
This produces the following result
------------------------------
111111111
(1 row(s) affected)
select wct.DEC2BIN(11, 10)
This produces the following result
------------------------------
000001011
(1 row(s) affected)