Question

我正在使用带有ASP.NET MVC前端的Azure DocumentDB NoSQL数据库。

我有一个Families集合（仅作为示例）：

#pragma once

namespace Project3 {

using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
using namespace Microsoft::DirectX::AudioVideoPlayback;

/// <summary>
/// Summary for MyForm
/// </summary>
public ref class MyForm : public System::Windows::Forms::Form
{
public:
    MyForm(void)
    {
        InitializeComponent();
        //
        //TODO: Add the constructor code here
        //
    }

protected:
    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    ~MyForm()
    {
        if (components)
        {
            delete components;
        }
    }

private:
    /// <summary>
    /// Required designer variable.
    /// </summary>
    System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    void InitializeComponent(void)
    {
        this->components = gcnew System::ComponentModel::Container();
        this->Size = System::Drawing::Size(300,300);
        this->Text = L"MyForm";
        this->Padding = System::Windows::Forms::Padding(0);
        this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;

        Audio^ myAudio;

        myAudio = gcnew Audio("Carl Grimes - Carl Poppa.wav", false);
        myAudio->Play();

    }
#pragma endregion
};
}

有没有办法可以检索＆＃34;儿童＆＃34; （例如List）按字母顺序排列而不循环遍历每个系列并构建单独的列表？

Answer 1

这就是JOIN用于：

SELECT c.FirstName
FROM Families f 
JOIN c IN f.children 
ORDER BY c.FirstName ASC

如何在Document DB数据库中合并子文档数组？

1 个答案: