Question

我对将大量原始数据插入数据库的最佳方式有疑问。

原始数据看起来像这样（它还有很多，但我认为我不需要为我的例子使用所有内容）：

CUSACODE - GAME - CONSOLE - REGION - DOWNLOADURL

CUSA00475   Akiba's Trip 2  PS4 JP  http://gs2.ww.prod.dl.playstation.net/gs2/appkgo/prod/CUSA00475_00/4/f_28d6a38b6ebac96d17a8b4de7616f6e5de43da365ef30d8354fb55df94eb0a4a/f/JP0048-CUSA00475_00-AKIBASNEXTAPP000.pkg
CUSA00363   Alien: Isolation - 0    PS4 US  http://gs2.ww.prod.dl.playstation.net/gs2/appkgo/prod/CUSA00363_00/3/f_e0ebc06845e6271392d9e3060bed29f7a1fb71bc4d8a966714ddc6df50934638/f/UP0177-CUSA00363_00-ALIENISOLATIONP4_0.pkg
CUSA00363   Alien: Isolation - 1    PS4 US  http://gs2.ww.prod.dl.playstation.net/gs2/appkgo/prod/CUSA00363_00/3/f_e0ebc06845e6271392d9e3060bed29f7a1fb71bc4d8a966714ddc6df50934638/f/UP0177-CUSA00363_00-ALIENISOLATIONP4_1.pkg
CUSA00363   Alien: Isolation - 2    PS4 US  http://gs2.ww.prod.dl.playstation.net/gs2/appkgo/prod/CUSA00363_00/3/f_e0ebc06845e6271392d9e3060bed29f7a1fb71bc4d8a966714ddc6df50934638/f/UP0177-CUSA00363_00-ALIENISOLATIONP4_2.pkg

使用空格分隔。

所以我认为首先制作一个阵列是一个好习惯。一旦它进入数组，就通过while和while SQL INSERT查询循环。

或者为此进行SQL查询会更好吗？有没有办法生成这个SQL查询，所以我不必手动添加所有内容？

我试过这样做：

$data = "CUSA00475|Akiba's Trip 2|PS4|JP|http://gs2.ww.prod.dl.playstation.net/gs2/appkgo/prod/CUSA00475_00/4/f_28d6a38b6ebac96d17a8b4de7616f6e5de43da365ef30d8354fb55df94eb0a4a/f/JP0048-CUSA00475_00-AKIBASNEXTAPP000.pkg,
CUSA00363|Alien: Isolation - 0|PS4|US|http://gs2.ww.prod.dl.playstation.net/gs2/appkgo/prod/CUSA00363_00/3/f_e0ebc06845e6271392d9e3060bed29f7a1fb71bc4d8a966714ddc6df50934638/f/UP0177-CUSA00363_00-ALIENISOLATIONP4_0.pkg,
CUSA00363|Alien: Isolation - 1|PS4|US|http://gs2.ww.prod.dl.playstation.net/gs2/appkgo/prod/CUSA00363_00/3/f_e0ebc06845e6271392d9e3060bed29f7a1fb71bc4d8a966714ddc6df50934638/f/UP0177-CUSA00363_00-ALIENISOLATIONP4_1.pkg,
CUSA00363|Alien: Isolation - 2|PS4|US|http://gs2.ww.prod.dl.playstation.net/gs2/appkgo/prod/CUSA00363_00/3/f_e0ebc06845e6271392d9e3060bed29f7a1fb71bc4d8a966714ddc6df50934638/f/UP0177-CUSA00363_00-ALIENISOLATIONP4_2.pkg";

$result = explode("|", $data);

foreach($result as $res) {
        $sub = explode(",",$res);
        $mainCategory[$sub[0]] = explode("|",$sub[1]);
}

但那非常失败。我希望有人可以帮我解决这个问题！

Answer 1

如果涉及大量数据，一个好主意是使用准备好的语句，在循环之前初始化。然后在循环内部绑定当前数据并执行语句。

这看起来像这样：

$sql = "INSERT INTO tableName(CUSACODE, GAME, CONSOLE, REGION, DOWNLOADURL) VALUES (?, ?, ?, ?, ?)";
$pstmt = $connection->prepare($sql);

foreach($allData as $data){
    $pstmt->bind_param("sssss", $data[0],  $data[1],  $data[2],  $data[3],  $data[4]);
    $pstmt->execute();
}

$pstmt->close();

根据数据的存储方式，有关如何对数据进行循环的方法有多种。

例如，如果您的数据在某处保存为文本文件，则可以使用以下内容：

$handle = fopen("inputfile.txt", "r");
if ($handle) {

    $sql = "INSERT INTO tableName(CUSACODE, GAME, CONSOLE, REGION, DOWNLOADURL) VALUES (?, ?, ?, ?, ?)";
    $pstmt = $connection->prepare($sql);

    while (($line = fgets($handle)) !== false) {

        $data = explode("\t", $line); //if the original delimiter is a tab, which was guessed, because only "whietspace" would make no sense

        $pstmt->bind_param("sssss", $data[0],  $data[1],  $data[2],  $data[3],  $data[4]);
        $pstmt->execute();
    }

    fclose($handle);
    $pstmt->close();
}

编辑：让数据内存已经转换为|和,格式，您肯定会首先对explode(',', $data)进行循环，然后展开|，如下所示：

$sql = "INSERT INTO tableName(CUSACODE, GAME, CONSOLE, REGION, DOWNLOADURL) VALUES (?, ?, ?, ?, ?)";
$pstmt = $connection->prepare($sql);

$seperatedData = explode(',', $data);

foreach($seperatedData as $oneDataSet){
    $seperatedOneData = explode('|', oneDataSet);

    $pstmt->bind_param("sssss", $seperatedOneData[0],  $seperatedOneData[1],  $seperatedOneData[2],  $seperatedOneData[3],  $seperatedOneData[4]);
    $pstmt->execute();
}

$pstmt->close();

将大量原始数据插入数据库PHP

1 个答案: