title: SQL Server concatenation -- two string variables -- what am I missing?
body: <p>Why doesn't this give expected result?</p>
  
  <pre><code>DECLARE @1 char(90);
  DECLARE @2 char(90);
  DECLARE @3 char(90);
  
  
  Set @1 = 'first part';
  set @2 = 'second part';
  
  set @3 = @1 + @2;
  
  print  @3;  -- outputs 'first part'  where did 2nd part go?
  </code></pre>