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my $sort = $q->param("sort");

if($sort ne "emp_id" || $sort ne "emp_last" || $sort ne "dept") {
   $sort = "emp_last"; }

my $search_text = param("search_text") || "";

if($search_text ne "") {
...

while(@emp_matches = $sth->fetchrow_array()) {
      $emp_matches{$emp_matches[0]} = $emp_matches[1]; } }