小编Pun*_*wla的帖子

表是:

+----+------+
| Id | Name |
+----+------+    
| 1  | aaa  |
| 1  | bbb  |
| 1  | ccc  |
| 1  | ddd  |
| 1  | eee  |
+----+------+

所需输出:

+----+---------------------+
| Id |        abc          |
+----+---------------------+ 
|  1 | aaa,bbb,ccc,ddd,eee |
+----+---------------------+

查询:

SELECT ID, 
    abc = STUFF(
                 (SELECT ',' + name FROM temp1 FOR XML PATH ('')), 1, 1, ''
               ) 
FROM temp1 GROUP BY id

此查询正常运行.但我只需要解释它是如何工作的,或者是否有其他或简短的方法来做到这一点.

我很难理解这一点.

我创建了图形,以JavaScript(PHP)中的Chartist.js库以图形形式显示值.Y轴的所有值都来自数据库.但我无法以千位格式显示Y轴.我想在交叉点的工具提示上显示千位格式值(检查图像)

PHP代码

$clientData = $wpdb->get_results('SELECT * FROM clientsdata WHERE Client_Id = "'.$currentUser->ID.'"');
$months=array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
$selectedFieldData = array();
foreach($months as $month){ 
$value = '';
    foreach($clientData as $client){
        if($client->Month == $month && $client->Year == $selectYear){
            $value = $client->$fieldValue;
            break;
        }
    }
    if(!empty($value)){ 
            $selectedFieldData[] = $value; //See below - 1
        }
        else{
            $selectedFieldData[] = null;
        }
}

JavaScript代码(图形实际代码)

$data =  "<script type='text/javascript'>


  var chart = new Chartist.Line('#chart1',{
  labels: ['January', 'February', 'March','April' ,'May' ,'June' …

我正在使用实体框架的数据库优先方法。当我在“ADO.NET 实体数据模型”中创建新连接时，添加服务器名称和数据库名称后，它会向我显示此错误 -

Could not load file or assembly 
'Microsoft.SqlServer.Management.Sdkc.Sfc, Version=11.0.0.0, 
Culture=neutral, PublicKey Toekn = 89845dcd8080cc91' or one of its
dependencies. The system cannot find the file specified.

在谷歌上找到了很多链接并尝试过，但它并没有解决我的问题。

无法加载文件或程序集 Microsoft.SqlServer.management.sdk.sfc 版本 11.0.0.0

尝试了这个
SharedManagementObjects.msi（64 位）（正确安装并重新启动 VS，再次出现相同的错误）PowerShellTools.msi

Visual Studio 2012、SQL Server 2008 R2、64 位操作系统