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  1. or download this
     $sth = $dbh->prepare( "
     SELECT  
    ...
      if( $sth->rows > 0 ){
         ## print out some results
      }
    
  2. or download this
     $sth = $dbh->prepare( "
     SELECT COUNT(*) As Total
    ...
         ## only if it passes this condition, do the REAL
         ## select and print out the results
      }
    
  3. or download this
    ($_='kkvvttuubbooppuuiiffssqqffssmmiibbddllffss')
     =~y~b-v~a-z~s;                             print