PERLでMySQLにデータを挿入する実験。 実験スクリプト INSERT を100万回繰り返す。 for(1..1000000){ $sql = <<"EOM"; INSERT INTO `table_name` (`col1`,`col2`,`col3`,`col4`) VALUES ('10','11','12','13'); EOM $sth = $dbh->do($sql)|| die $dbh->errstr; } 結果:途中でサーバエラー Server error! The server encountered an internal error and […]
CGIでダミー画像(GIF)を表示するだけのスクリプト。画像データ必要なし。 my @dummy = ("47","49","46","38","39","61","08","00","08","00","80","00","00","00","00","00","FF","FF","FF","21","F9","04","01","00","00","01","00","2C","00","00","00","00","08","00","08","00","40","02","06","8C","8F","A9","CB","ED","5D","00","3B" );print "Cont […]
$sql = "INSERT INTO `db_01` ( data1, data2 ) VALUES ( $data1, $data2 )"; $sth = $dbh->prepare( "$sql" ); $sth->execute(); $id = $sth->{mysql_insertid}; これで$idに「自分が追加した最新のauto_increment番号」が代入される ただし下記のようにdoでは使えない。 $sql = "INSERT INTO `db_01` ( data1, data2 ) VALUES ( $data1, $data2 )"; $sth […]