du7979 2012-08-17 19:47
浏览 65

在MongoDb中查找下一个文档

If this is my collection structure:

{   "_id": ObjectId("4fdbaf608b446b0477000142"),
    "name": "product 1",
},
{   "_id": ObjectId("fghfghfgjhjghkgk"),
    "name": "product 2",
},
{   "_id": ObjectId("fghfghfgjhjghkgk"),
    "name": "product 3",
}

and I query product 1, is there a way to query the next document, which in this case would be product 2?

  • 写回答

2条回答

  • dou72260 2012-08-17 20:24
    关注

    You can get the items back in insertion order using ObjectId. See: http://www.mongodb.org/display/DOCS/Optimizing+Object+IDs#OptimizingObjectIDs

    If you want to get them back in some other order then you will have to define what that order is and store more information in your documents.

    评论

报告相同问题?

悬赏问题

  • ¥15 安卓adb backup备份应用数据失败
  • ¥15 eclipse运行项目时遇到的问题
  • ¥15 关于#c##的问题:最近需要用CAT工具Trados进行一些开发
  • ¥15 南大pa1 小游戏没有界面,并且报了如下错误,尝试过换显卡驱动,但是好像不行
  • ¥15 没有证书,nginx怎么反向代理到只能接受https的公网网站
  • ¥50 成都蓉城足球俱乐部小程序抢票
  • ¥15 yolov7训练自己的数据集
  • ¥15 esp8266与51单片机连接问题(标签-单片机|关键词-串口)(相关搜索:51单片机|单片机|测试代码)
  • ¥15 电力市场出清matlab yalmip kkt 双层优化问题
  • ¥30 ros小车路径规划实现不了,如何解决?(操作系统-ubuntu)