title: How to combine text and numbers in catx statement
body: <p>The variable upc is already defined in my cool dataset. How do I convert it to a macro variable? I am trying to combine both text and numbers. For example blah should equal upc=123;</p>
  
  <pre><code>    data cool;
      set cool;
  
      blah = catx("","upc=&amp;upc","ccc")
      run;
  </code></pre>