Adding one Google Spreadsheet column to a string to dynamically create a URL in the next column

Question

I have a spreadsheet of product id codes that I'd like to turn into links, and from everything I've read, the concat or concatenate functions in Google Docs should work for that, but so far everything I try results in an error.

What I want to get:

Brand   Product Code        URL 
AP  X527W       http://example.com/search.php?Code=X527W    
AP  X522M       http://example.com/search.php?Code=X527W
AP  Y500M       http://example.com/search.php?Code=X527W        

What actually happens, when I use the formula =concat('http://example.com/search.php?Code=', B2)

or =concatenate('http://example.com/search.php?Code=', B2)

or ='http://example.com/search.php?Code=' & B2

is

#Error

So how do I concatenate strings in Google Docs?

Answer 1

Always enclose string literals in double quotation marks.

= "http://example.com/search.php?Code=" & B2

Answer 2

This works OK for me:

=concatenate("http://example.com/search.php?Code="; B2)