MongoDB 3.2.6 无法运行 updateMany()答案

【问题标题】：MongoDB 3.2.6 failed to run updateMany()MongoDB 3.2.6 无法运行 updateMany()
【发布时间】：2017-04-13 18:38:36
【问题描述】：

我是 MongoDB 的新手。我试图更新我的 MongoDB 中的许多记录。但它给了我这个错误。有人可以帮忙吗？

2017-04-13T11:23:07.572-0700 E QUERY [thread1] 错误：更新操作文档必须包含原子操作符： DBCollection.prototype.updateMany@src/mongo/shell/crud_api.js:568:1 @(shell):1:1

样本数据：

{
    userId: "id#1",
    username: "abc",
    firstName: "ABC",
    lastName: "DEF",
    age: 19
}
{
    userId: "id#1",
    username: "abc",
    firstName: "ABC",
    lastName: "DEF",
    age: 19
}
{
    userId: "id#1",
    username: "abc",
    firstName: "ABC",
    lastName: "DEF",
    age: 19
}
{
    userId: "id#1",
    username: "abc",
    firstName: "ABC",
    lastName: "DEF",
    age: 19
}

示例查询：

db.users.updateMany(
{
    userId: {
        $in: ["id#1","id#2","id#3"]
    }
},
{
    userId: "id#12345",
    username: "abc",
    firstName: "ABC",
    lastName: "DEF",
    age: 19
})

【问题讨论】：

标签： mongodb mongo-shell

【解决方案1】：

updateMany 要求您指定要应用的操作。您的示例查询将如下所示：

db.users.updateMany(
{
    userId: {
        $in: ["id#1","id#2","id#3"]
    }
},
{
  $set: {
    userId: "id#12345",
    username: "abc",
    firstName: "ABC",
    lastName: "DEF",
    age: 19
  }
})

【讨论】：