Question : if exists query update a table

I need to see if a value exists in a table.   if it doesn't then, I want to call an update.

Something like this, but need assistance with the syntax.....

IF select myRec from tblA isNULL or '' then
UPDATE tblA
set myRec = ......
END IF

Answer : if exists query update a table

you missed a leading $ sign:
$('<p> appendTo  </p>').appendTo("#tabs-1");

Also, execute it upon page load, not while the page is still loading:
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<script>
    $(document).ready(function() {
      
	    $('<p> appendTo  </p>').appendTo("#tabs-1");
	    $("#tabs").tabs();
    });
  </script>
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