VARBINARY string literals
VARBINARY string literals allow you to specify hexadecimal or binary digits in a string literal.
	VARBINARY string literals allow you to specify hexadecimal or binary digits in a string literal.
Syntax
X'' 
B'' 
Parameters
- Xor- x
- Specifies hexadecimal digits. The <hexadecimal digits> string must be enclosed in single quotes (').
- Bor- b
- Specifies binary digits. The <binary digits> string must be enclosed in single quotes (').
Examples
=> SELECT X'abcd';
 ?column?
----------
 \253\315
(1 row)
=> SELECT B'101100';
 ?column?
----------
 ,
(1 row)