Question

我有一个代码将xlsx上传到Mysql表，并且加载是用块完成的，因为文件太大，所以我必须插入每个块。 for循环运行良好，已经使用echo语句进行了测试，但INSERT仅在第一个块中完成。知道怎么解决这个问题吗？这是代码的一部分：

for ($startRow = 2; $startRow <= $totalRows; $startRow += $chunkSize) {
  $chunkFilter->setRows($startRow,$chunkSize);
  //Load of the data
  $objPHPExcel = $objReader->load($newFilePath);
  $objWorksheet4 = $objPHPExcel -> getSheetByName("MIFReportExport");
  //Getting data of every cell
  $highestRow4 = $objWorksheet4->getHighestRow();
  $highestColumn4 = $objWorksheet4->getHighestColumn();
  $highestColumnIndex4 = PHPExcel_Cell::columnIndexFromString($highestColumn4);
  $rows = array();
  for ($row = 2; $row <= $highestRow4; ++$row) {
     for ($col = 0; $col <= $highestColumnIndex4; ++$col) {
          $rows[$col] = $objWorksheet4->getCellByColumnAndRow($col, $row)->getCalculatedValue();
}
 $result = mysql_query("INSERT INTO fy16 (SerialNumber, BrandedModelName, GenericProductCode, Familia, ProductLineModelFile)VALUES ('".$rows[0]."', '".$rows[1]."', '".$rows[2]."', '".$rows[3]."', '".$rows[4]."', '".$rows[5]."')",$con) or die(mysql_error());

}

}

提前致谢。

Answer 1

首先，你应该看一下PDO和准备好的陈述。以下是如何创建MASS插入查询

#!/usr/bin/perl -w

use utf8;
use strict;
use feature qw(:5.10);

use Encode qw(encode is_utf8);
use DBI;
use Data::Dumper;

my $str = 'æøå';

my $latin1 = encode('latin1', $str);

my $utf8upgraded = $latin1;
utf8::upgrade($utf8upgraded);

# $str, $latin1 and $utf8upgraded are all eq each other:
$str eq $latin1
    or die;
$str eq $utf8upgraded
    or die;
$latin1 eq $utf8upgraded
    or die;

my $dbh = DBI->connect(
    "DBI:mysql:mysql",
    'user',
    'pass',
);

$dbh->do(q(
    CREATE TEMPORARY TABLE test (
        name VARCHAR(255) DEFAULT NULL
    ) CHARSET=latin1;
));
$dbh->do(q(
    INSERT INTO test (name) VALUES ('');
));

sub mysql_roundtrip_convert {
    my ($val) = @_;
    my $sth = $dbh->prepare('SELECT CONVERT(? USING LATIN1)');
    $sth->execute($val);
    my ($concat) = $sth->fetchrow_array();
    return $concat;
}

sub mysql_roundtrip_column {
    my ($val) = @_;
    my $updateSth = $dbh->prepare('update test set name=?');
    $updateSth->execute($val);
    my $getSth = $dbh->prepare('select name from test');
    $getSth->execute();
    my ($value) = $getSth->fetchrow_array();
    return $value;
};

sub mysql_roundtrip {
    my ($val) = @_;
    # Check that these two are the identical:
    my $column = mysql_roundtrip_column($val);
    my $convert = mysql_roundtrip_convert($val);
    $column eq $convert
        or die "column ne convert";
    return $column;
}

sub mysql_value_latin1 {
    my ($val) = @_;
    # See text - this looks strange - but works!
    if (is_utf8($val)) {
        $val = encode('utf8', $val);
    } else {
        $val = encode('latin1', $val);
    }
    return $val;
}

sub new_value_will_change_database {
    my ($current_value, $new_value) = @_;
    my $mysql_new_value = mysql_value_latin1($new_value);
    return $current_value ne $mysql_new_value;
}

my @tests = (
    [ 'str', $str ],
    [ 'latin', $latin1 ],
    [ 'utf8upgraded', $utf8upgraded ],
    map { [ 'char ' . $_ , 'char' . chr($_) ] } ( 0x00 .. 0xFF ),
);

foreach (@tests) {
    my ($disp, $val) = @$_;
    my $mysql_roundtrip = mysql_roundtrip($val),
    my $mysql_value_latin1 = mysql_value_latin1($val);
    $mysql_value_latin1 eq $mysql_roundtrip
        or die "mysql_value_latin1 ne mysql_roundtrip";
}
print "All test are fine\n";

MySQL在（PHP）循环内部执行INSERT。 INSERT仅在第一个循环

1 个答案: