Performance 使用循环INNERJOIN从MYSQL查询中缓慢计数记录

救命啊,， 我只想从我的数据库里知道个数， 是的，我有多对多关系表 记录为100.000-150.000 所以我使用内部连接，它看起来对我来说很有效

但是

我有一个非常慢的查询，大约2-5秒

SELECT COUNT(*) FROM monitoring_pasien 
INNER JOIN master_desa ON master_desa.DESA_ID = monitoring_pasien.DESA_ID
INNER JOIN monitoring_loket ON monitoring_pasien.PASIEN_ID = monitoring_loket.PASIEN_ID AND monitoring_pasien.PKM_ID = monitoring_loket.PKM_ID
INNER JOIN monitoring_pelayanan ON monitoring_pelayanan.LOKET_ID = monitoring_loket.LOKET_ID AND monitoring_pelayanan.PKM_ID = monitoring_loket.PKM_ID
INNER JOIN monitoring_diagnosa ON monitoring_diagnosa.PELAYANAN_ID = monitoring_pelayanan.PELAYANAN_ID AND monitoring_diagnosa.PKM_ID = monitoring_pelayanan.PKM_ID
INNER JOIN master_penyakit ON master_penyakit.PENYAKIT_ID = monitoring_diagnosa.PENYAKIT_ID
WHERE monitoring_pasien.DESA_ID < 19 AND master_desa.DESA_ID <> 0 AND master_penyakit.SURVEYLANS = '1';    

然后。。。 当我将其用于此查询时，它将工作约100秒：

$query = "SELECT * FROM master_desa WHERE DESA_ID < 19 AND DESA_ID <> 0 ORDER BY DESA asc";
$result = mysql_query($query) or die('Error');
while($data = mysql_fetch_array($result))
{
$DESA = $data["DESA"];
$DESA_ID = $data["DESA_ID"];   

$queryPasien = "SELECT COUNT(*) AS jumPasien FROM monitoring_pasien
INNER JOIN master_desa ON master_desa.DESA_ID = monitoring_pasien.DESA_ID
INNER JOIN monitoring_loket ON monitoring_pasien.PASIEN_ID = monitoring_loket.PASIEN_ID AND monitoring_pasien.PKM_ID = monitoring_loket.PKM_ID
INNER JOIN monitoring_pelayanan ON monitoring_pelayanan.LOKET_ID = monitoring_loket.LOKET_ID AND monitoring_pelayanan.PKM_ID = monitoring_loket.PKM_ID
INNER JOIN monitoring_diagnosa ON monitoring_diagnosa.PELAYANAN_ID = monitoring_pelayanan.PELAYANAN_ID AND monitoring_diagnosa.PKM_ID = monitoring_pelayanan.PKM_ID
INNER JOIN master_penyakit ON master_penyakit.PENYAKIT_ID = monitoring_diagnosa.PENYAKIT_ID

WHERE master_desa.DESA='$DESA' AND master_penyakit.PENYAKIT_ID = '$penyakit' AND TGL LIKE '$pilihan' ";

$resultPasien = mysql_query($queryPasien) or die('Error');
while($dataPasien = mysql_fetch_array($resultPasien))
{
$jumPasien = $dataPasien['jumPasien'];      

if ($jumData == 0) { $persen = "0%"; } 
else { 
        $bagi = $jumPasien/$jumData;
        $persen = round((float)$bagi * 100 ) . '%';         
     }

echo "<tr>
        <td>$DESA</td>
        <td width=\"40\"> : $persen</td>
        <td width=\"70\">";

$loop = floor($persen/2);
$gambar = "images/bar.png";

for($j=0;$j<=$loop;$j++)
    {
        echo "<img src=\"$gambar\" alt=\"=\" />";
    }       


echo  "</td></tr>";

}

if ($persen >= 0 AND $persen <= 25) { $color = "green"; } 
else if ($persen > 25 AND $persen <= 50) { $color = "blue"; } 
else if ($persen > 50 AND $persen <= 75) { $color = "yellow"; } 
else if ($persen > 75 AND $persen <= 100) { $color = "red"; } 

if ($DESA == 'GEDONGAN') { $gedongan_jml=" $jumPasien Penderita [ $persen ]"; $gedongan_color=$color;}
else if ($DESA == 'BALONGSARI') { $balongsari_jml=" $jumPasien Penderita [ $persen ]"; $balongsari_color=$color;}
else if ($DESA == 'BLOOTO') { $blooto_jml=" $jumPasien Penderita [ $persen ]"; $blooto_color=$color;}                   

}

我的代码怎么了

感谢您的帮助

如果您没有理由进行内部连接，请使用左连接代替：

SELECT COUNT(*) FROM monitoring_pasien 
    LEFT JOIN master_desa ON master_desa.DESA_ID = monitoring_pasien.DESA_ID
    LEFT JOIN monitoring_loket ON monitoring_pasien.PASIEN_ID = monitoring_loket.PASIEN_ID AND monitoring_pasien.PKM_ID = monitoring_loket.PKM_ID
    LEFT JOIN monitoring_pelayanan ON monitoring_pelayanan.LOKET_ID = monitoring_loket.LOKET_ID AND monitoring_pelayanan.PKM_ID = monitoring_loket.PKM_ID
    LEFT JOIN monitoring_diagnosa ON monitoring_diagnosa.PELAYANAN_ID = monitoring_pelayanan.PELAYANAN_ID AND monitoring_diagnosa.PKM_ID = monitoring_pelayanan.PKM_ID
    LEFT JOIN master_penyakit ON master_penyakit.PENYAKIT_ID = monitoring_diagnosa.PENYAKIT_ID
WHERE monitoring_pasien.DESA_ID < 19 AND master_desa.DESA_ID <> 0 AND master_penyakit.SURVEYLANS = '1';

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如果不知道每个表中有多少行，谈论速度是没有建设性的。但是你在WHERE子句中使用了LIKE-afaik，这非常慢。是的，你是对的，我在其中使用LIKE和using=使速度加快了200%，但仍然很慢，现在是50-70秒，但是，谢谢，这非常有帮助，你确定吗？因为在我的例子中，内部联接的工作速度比navicatit测试的左联接快，这取决于您想要计数的内容以及每个表中有多少个条目