PHP 分批插入多行

Question

我有一个查询要分批插入多行。基本上，我需要分批拆分插入，以便为插入的批生成唯一的随机 ID。

我尝试过但失败了很多不同的选择，其中之一如下。

$batch = 150;
$sql = "SELECT DISTINCT `column` FROM `table` GROUP BY `column` ORDER BY `ID` ASC";
$sqle = $con->Execute($sql);
$results = $sqle->getrows();
for($i=0; $i<count($results);$i++){
    $columns1 = $results[$i]['column'];
      if($i==$batch){
            $randd = randcode(5).time();
                $sql = "INSERT INTO `newtable` SET `columns1` = ".$con->qstr($columns1).", `rcode` = ".$con->qstr($randd).", `DATE_PUBLISHED` = ".$con->qstr($sdate);
                $results=$con->Execute($sql);
           $i=0;
        }
}

但是，我无法成功地为每 150 批插入的查询插入唯一代码。

我在为每批次生成随机唯一代码时哪里出错了？还有我想知道如果记录少于150条，那么如何处理？

Answer 1

你一定要试试这个

<?php

$batch = 0;
$sql = "SELECT DISTINCT `column` FROM `table` GROUP BY `column` ORDER BY `ID` ASC";
$sqle = $con->Execute($sql);
$results = $sqle->getrows();


$sql = "";
for($i=0; $i<count($results);$i++)
{
    $columns1 = $results[$i]['column'];
    $randd = randcode(5).time();

    if($batch==0)
    {
        $sql = "insert into `demo` (`columns1`, `rcode`, `DATE_PUBLISHED`) values "
    }

    $sql.= "(".$results[$i]['column1'].",".$randd.",".$results[$i]['column1']."),";

    if($batch==150)
    {       
        $results=$con->Execute($sql);
        $batch=0;
        $sql="";
    }
    $batch++;
}

Answer 2

这将为您提供设置每批次随机 ID 的基本方法的逻辑。

在此示例中，没有数据库连接。您必须自己添加。您还想查看 INSERT 语句的语法（剧透：INSERT INTO <table name> (<columns>) VALUES (<values>)）。

// For this example, generate a result array with 350 rows
// (remove when using actual db query)
for ($i = 1; $i <= 350; $i++) {
    $results[] = ['column' => 'column ' . $i];
}

// Loop through all result rows
foreach ($results as $batchCounter => $result) {
    if ($batchCounter % 150 == 0) {
        // Generate a new random ID for the first row and every 150 rows
        $random = uniqid();
    }

    // Replace with proper insert statement
    echo "Insert random ", $random, ' for column "', $result['column'], '"', PHP_EOL;
}

输出：

Insert random 55e0186b0607f for column "column 1"
Insert random 55e0186b0607f for column "column 2"
Insert random 55e0186b0607f for column "column 3"
...
Insert random 55e0186b0607f for column "column 150"
Insert random 55e0186b063da for column "column 151"
Insert random 55e0186b063da for column "column 152"
Insert random 55e0186b063da for column "column 153"
...
Insert random 55e0186b063da for column "column 300"
Insert random 55e0186b0666e for column "column 301"
Insert random 55e0186b0666e for column "column 302"
Insert random 55e0186b0666e for column "column 303"
...
Insert random 55e0186b0666e for column "column 350"

Answer 3

你一定要试试这个。我修复了您的代码中的一些错误以成功插入记录：

<?php

$batch = 1;
$rows = 0;
$sql = "";
$sql = "SELECT DISTINCT `column` FROM `table` GROUP BY `column` ORDER BY `ID` ASC";
$sqle = $con->Execute($sql);
$results = $sqle->getrows();

for($i=0; $i<count($results);$i++)
{
    $columns1 = $results[$i]['column'];
    $randd = randcode(5).time();

    if($batch==1)
    {
        $sql = "insert into `demo` (`columns1`, `rcode`, `DATE_PUBLISHED`) values "
    }

    $sql.= "(".$results[$i]['column1'].",".$randd.",".$results[$i]['column1']."),";

    $rows++;
    if($batch==100)
    {

        $this->SendRecords($conn, $sql);
        $batch=1;
        $sql="";
    } else if($rows == count($results) && $batch > 1 && $batch<=100){

        $this->SendRecords($conn, $sql);
        $batch=0;
        $sql="";
     }else {
        $batch++;
        $sql.=",";
    }
}

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