MongoDB collection hyphenated name

问题

I'm using Node.js program to insert data into a MongoDB database. I have inserted data into a collection named "repl-failOver".

var mongoClient = require("mongodb").MongoClient;
mongoClient.connect("mongodb://localhost:30002/test", function(err, db) {
    if (err) throw err;
    db.collection("repl-failOver").insert( { "documentNumber" : document++}, function (err, doc) {
        if (err) throw err;
        console.log(doc);
    });
    db.close();
});

When I use the Mongo shell and list down the collections in the database using show collections I am able to see the collection "repl-failOver".

How do I run a find command from the mongo shell for this collection?

回答1:

Use this syntax:

db['repl-failOver'].find({})

or

db.getCollection('repl-failOver').find({})

You can find more information in the Executing Queries section of the manual:

If the mongo shell does not accept the name of the collection, for instance if the name contains a space, hyphen, or starts with a number, you can use an alternate syntax to refer to the collection, as in the following:

db["3test"].find()

db.getCollection("3test").find()

回答2:

You are getting this error from accessing collections with specific characters (-, _, ). I explained the workaround here, but basically all you need is to do

db.getCollection("repl-failOver").insert(...)

来源：https://stackoverflow.com/questions/24711939/mongodb-collection-hyphenated-name