3

可能重复：
对多个查询的 PDO 支持（PDO_MYSQL、PDO_MYSQLND）

我在这里有一个声明.. 当我从 phpmyadmin 运行它时.. 我得到了我的查询工作.. 但是当我从 php 执行它时它没有..

这是我的查询（声明）

SET @sql = NULL;
 SELECT GROUP_CONCAT(DISTINCT CONCAT('MAX(IF(a.Name = ''', a.Name, ''', ca.value, NULL)) AS ', a.Name )) INTO @sql FROM cust_attribute ca INNER JOIN attribute a ON ca.idAttribute = a.idAttribute INNER JOIN customer c ON c.idCustomer = ca.idCustomer WHERE a.publish = 'Y';
 SET @sql = CONCAT('SELECT c.idCustomer, c.namaCustomer, ' ' c.email, c.noTelp, ', @sql, ' FROM cust_attribute ca', ' INNER JOIN attribute a ON ca.idAttribute = a.idAttribute', ' INNER JOIN customer c ON c.idCustomer = ca.idCustomer', ' GROUP BY c.idCustomer');
 SELECT @sql;
 prepare stmt FROM @sql;
 execute stmt;

这是我在 php 上的代码...

<?php 
$uname = 'root'; //nama username database 
$pwd = ''; //Password database 
$dbname = 'eav_latihan'; //nama Database 

/* Initialisasi database */ 
$db = new PDO('mysql:host=localhost;dbname='.$dbname, $uname, $pwd); 
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING); 


$query = "SET @sql = NULL; ". 
" SELECT GROUP_CONCAT(DISTINCT CONCAT('MAX(IF(a.Name = ''', ". 
" a.Name, ''', ca.value, NULL)) AS ', a.Name )) INTO @sql ". 
" FROM cust_attribute ca ". 
" INNER JOIN attribute a ON ca.idAttribute = a.idAttribute ". 
" INNER JOIN customer c ON c.idCustomer = ca.idCustomer ". 
" WHERE a.publish = 'Y'; ". 
" SET @sql = CONCAT('SELECT c.idCustomer, c.namaCustomer, ' ". 
" ' c.email, c.noTelp, ', @sql, ' FROM cust_attribute ca', ". 
" ' INNER JOIN attribute a ON ca.idAttribute = a.idAttribute', ". 
" ' INNER JOIN customer c ON c.idCustomer = ca.idCustomer', ". 
" ' GROUP BY c.idCustomer'); ". 
" SELECT @sql; ". 
" prepare stmt FROM @sql; ". 
" execute stmt;"; 

$result_array = array();
$queryku = $db->query($query);
$result_array = $queryku->fetchAll(PDO::FETCH_OBJ);
var_dump($result_array);
?>

任何人都可以在这里帮助我或给我一个建议？

4

2 回答 2

2

关于 PDO，这个问题之前已经出现过。不确定这是错误还是安全功能（可能与此有关：Mysql can't perform more than 1 query at a time）。

看看这个解决方案：http ://www.php.net/manual/en/book.pdo.php#96264

于 2012-11-05T07:31:23.227 回答
0

我认为PDO无法执行多个查询。尝试Stored Procedure对此使用 a 。

DELIMITER $$
CREATE PROCEDURE procName
BEGIN
SET @sql = NULL;
 SELECT GROUP_CONCAT(DISTINCT CONCAT('MAX(IF(a.Name = ''', a.Name, ''', ca.value, NULL)) AS ', a.Name )) INTO @sql FROM cust_attribute ca INNER JOIN attribute a ON ca.idAttribute = a.idAttribute INNER JOIN customer c ON c.idCustomer = ca.idCustomer WHERE a.publish = 'Y';
 SET @sql = CONCAT('SELECT c.idCustomer, c.namaCustomer, ' ' c.email, c.noTelp, ', @sql, ' FROM cust_attribute ca', ' INNER JOIN attribute a ON ca.idAttribute = a.idAttribute', ' INNER JOIN customer c ON c.idCustomer = ca.idCustomer', ' GROUP BY c.idCustomer');
 SELECT @sql;
 prepare stmt FROM @sql;
 execute stmt;
END $$
DELIMITER ;

并调用procName您的 PHP 文件。

于 2012-11-05T07:40:40.523 回答