Question

我有一个数据库nginx_1 | 2017/11/01 13:21:25 [error] 8#8: *1 FastCGI sent in stderr: "Access to the script '/web' has been denied (see security.limit_extensions)" while reading response header from upstream，其中有多个表。现在我想计算整个数据库中crm_data值等于column_name的所有行。要计算数据库中的所有行，我正在使用此mysql查询。

我的SQL查询：

YES

由于

Answer 1

我做了什么我回到基础并使用SHOW TABLES然后我使用表查询SELECT * FROM $company WHERE rental_status = 'YES'。我得到了结果。

顺便说一句，谢谢你们给我你的建议。

Answer 2

试试这个，我希望它适合你

// connect to Database.
   $links = mysqli_connect($db_host, $db_username, $db_password, $db_name );

   if($links === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
      }

//get total
    $n = 'YES';



$result = mysqli_query($links,"SELECT   Count(*) As column_name FROM crm_data WHERE column_name='".$n."'");

                                                       $rows = mysqli_num_rows($result);



                                                if($rows){

                                                    $gt = mysqli_fetch_assoc($result);

                                                     $total = $gt["column_name"];

                                                    }
                                   echo $total;

按要求使用PDO。

 // using PDO
  $servername = "localhost";
$username = "user";
$password = "pass";

try {
    $conn = new PDO("mysql:host=$servername;dbname=dbname", $username, $password);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    //echo "Connected successfully"; 

// call for the row count here.

$w='YES';
$rs = $conn->prepare("SELECT   Count(*) As column_name FROM crm_data WHERE column_name='".$w."'");
$rs->execute();
$count = $rs->rowCount();
echo '<p>Total:'.$count.'</p>';
}
catch(PDOException $e)
    {
    echo "Connection failed: " . $e->getMessage();
    }

Answer 3

您现在没有查询数据库中的数据，而是现在查询数据库的实际结构，这是有关的。

...尽管如此

{{1}}

您正在寻找的查询......

计算数据库中列等于“YES”的所有行

3 个答案: