mysql , perl script freezing when retrieving data -

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hi have code. perl scripts hangs somewhere in @row section. printed next query statement , works in sql.

why hanging?

foreach $device (...)          $sth2 = $dbh->prepare(qq|select distinct s,`w(m)`,`l(m)`,v `$sql_table_name` device='$device'| );         $sth2->execute(  );         %temp = ();         while ( @row = $sth2->fetchrow_array(  ))          {             $temp{s}{$row[0]} = 1;             $temp{w}{$row[1]}       = 1;             $temp{l}{$row[2]}       = 1;             $temp{v}{$row[3]}     = 1;          }

you seem have syntax error in query (vfrom rather v from).

if query fails, there's no result set fetch row from. might want build error handling code.


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