更新了全功能代码
我在 IIS 7.5 上运行 PHP 以连接到托管在另一台服务器上的 SQL Server 数据库...
我的网页可以正常工作,但是执行这样的简单查询需要很长时间......每个循环只返回 (12*3)*n 个结果,循环在 foreach“servicio_id”中给出,其中 n = 服务的数量我有... 一个简单的页面必须返回给我: ((12*3)*14) * 3 个结果... 我会解释: ((12 * 3) * SERVICES) * NUMBER OF TABLES (Banksphere 和 Umbrales * 2 就像你会看到的......)
我认为问题出在表中,因为我有近 200 万行,并且每天增加约 20.000 行......但我认为运行查询不会花那么长时间,因为我指定了 entidad_id 之类的参数, servicio_id, peticion_id, fecha... 显示页面大约需要 20-30 秒,有时它会停止并只显示一半... 请给点建议?
public static function getValues($entidad_id, $servicio_id, $peticion_id, $fecha) {
if(date('d', strtotime($fecha)) >= '28' || date('d', strtotime($fecha)) <= '1') {
$dia_id = 8;
} else {
$dia_id = date('N', strtotime($fecha)) -1;
}
echo '<script type="text/javascript" language="javascript">
function openwindow(URL) {
window.open(URL,"Comentarios","menubar=1,resizable=1,width=700,height=350");
}
</script>';
$conn = sqlsrv_connect(DB_SERVER.', '.DB_PORT, array("UID"=>DB_USER, "PWD"=>DB_PASS, "Database"=>DB_NAME));
$sqlQuery = sqlsrv_query($conn, "
SELECT TOP ".OPT_RESULTADOS_MAXIMOS." *
FROM Banksphere
WHERE entidad_id = '$entidad_id'
AND servicio_id = '$servicio_id'
AND peticion_id = '$peticion_id'
AND fecha = '".$fecha."'
ORDER BY hora_id DESC
");
while ($row = sqlsrv_fetch_array($sqlQuery)) {
$umbralesQuery = sqlsrv_query($conn, "
SELECT *
FROM Umbrales
WHERE entidad_id = '$row[entidad_id]'
AND servicio_id = '$row[servicio_id]'
AND peticion_id = '$row[peticion_id]'
AND dia_id = '$row[dia_id]'
AND hora_id = '$row[hora_id]'
ORDER BY hora_id DESC
");
$umbralesOk = sqlsrv_query($conn, "
SELECT *
FROM Umbrales
WHERE entidad_id = '$row[entidad_id]'
AND servicio_id = '$row[servicio_id]'
AND peticion_id = '0'
AND dia_id = '$row[dia_id]'
AND hora_id = '$row[hora_id]'
ORDER BY hora_id DESC
");
$umbrales = sqlsrv_fetch_array($umbralesQuery);
$uOK = sqlsrv_fetch_array($umbralesOk);
sqlsrv_free_stmt($umbralesQuery);
sqlsrv_free_stmt($umbralesOk);
$medias = Umbrales::getValues($uOK['minimo'], $umbrales['minimo']);
if($row['usuario'] != '') $postedby = 'Comentado por '.$row['usuario'].': '; else $postedby = '';
if($peticion_id == 0) {
if($row['valor'] < $medias[0]) {
$color = "D";
} else if($row['valor'] > $medias[1]) {
$color = "A";
} else {
$color = "OK";
}
$minimo = $medias[0];
$maximo = $medias[1];
}
if($peticion_id == 1) {
if($row['valor'] > $medias[2]) {
$color = "D";
} else {
$color = "OK";
}
$minimo = 0;
$maximo = $medias[2];
}
if($peticion_id == 2) {
if($row['valor'] > $medias[3]) {
$color = "D";
} else {
$color = "OK";
}
$minimo = 0;
$maximo = $medias[3];
}
if($color == "OK"){
echo '
<td title="MINIMO: '.$minimo.' | MAXIMO: '.$maximo.'" class="'.$color.'">'.round($row['valor'], 3).'</td>
';
} else {
echo '
<td title="MINIMO: '.$minimo.' | MAXIMO: '.$maximo.'" class="'.$color.'">
<a href="javascript:openwindow(\'/includes/commentForm.php?servicio='.$umbrales['servicio_id'].'&umbral_id='.$umbrales['id'].'&id='.$row['id'].'\')">'.round($row['valor'], 3).'</a>
</td>
';
}
}
sqlsrv_free_stmt($sqlQuery);
sqlsrv_close($conn);
}