i tidied up my code but my main concern was the mlutiple active statement issues - didn't know the right way to do it. thanks 
my $sql_select = "select * from $tableName";


     $sth->execute or die $sth->errstr;


     
        $sql_delete = "delete from $tableName where LiftChr=? and Lift
+Pos=?";


     my $sth1 = $db->prepare($sql_delete);

     



     while ($snp = $sth->fetchrow_hashref) {

    
          $sth1->execute($snp->{'LiftChr'}, $snp->{'LiftPos'});
    }

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In reply to Re^3: cleaning up dbi code by Anonymous Monk
in thread cleaning up dbi code by Anonymous Monk

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