SQL Server 2005 allows to concatenate two binary strings into a single string with the (+) operator. The following tutorial exercise shows you some binary string concatenation examples:

-- Concatenating two binary string literals

SELECT 0x57656C636F6D6520746F20

+ 0x46594963656E7465722E636F6D;

GO

0x57656C636F6D6520746F2046594963656E7465722E636F6D

-- Watch out: This is not a binary string concatenation

SELECT '0x57656C636F6D6520746F20'

+ '0x46594963656E7465722E636F6D';

GO

0x57656C636F6D6520746F200x46594963656E7465722E636F6D

-- Concatenating two binary strings

SELECT CONVERT(VARBINARY(40),'Welcome to ')

+ CONVERT(VARBINARY(40),'GlobalGuideLine.com');

GO

0x57656C636F6D6520746F2046594963656E7465722E636F6D

-- Binary strings can not be concatenated

with character strings

SELECT 'Welcome to '

+ 0x46594963656E7465722E636F6D;

GO

Msg 402, Level 16, State 1, Line 1

The data types varchar and varbinary are incompatible

in the add operator.