PHP在拆分批次中插入多行

Question

我有一个查询在拆分批次中插入多行。基本上，我需要分批插入插入，以便我可以生成一个唯一的随机ID插入批处理。

我试过了很多不同的选项，其中一个如下失败。

$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，我没有成功地为每150个批量插入的查询插入唯一代码。

我在哪里为每批生成随机唯一代码出错？而且我想知道是否有少于150条记录，那么如何处理相同的记录？

Answer 1

这将为您提供与逻辑设定每批次随机ID的基本途径。

在此示例中，没有数据库连接。你将不得不自己添加。您还需要查看INSERT语句的语法（扰流板：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 2

你一定要试试这一个

<?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++; 
}