Concatenating Two Binary Strings in SQL Server

Q

How To Concatenate Two Binary Strings Together in SQL Server Transact-SQL?

✍: FYIcenter.com

A

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),'FYIcenter.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.

 

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2017-03-07, 1468🔥, 0💬