node.js mongodb.find all
Find One. To select data from a collection in MongoDB, we can use the findOne() method. The findOne() method returns the first occurrence in the selection. The first parameter of the findOne() method is a query object. In this example we use an empty quer,Filter the Result. When finding documents in a collection, you can filter the result by using a query object. The first argument of the find() method is a query object, and is used to limit the search. Example. Find documents with the address "Park L,var MongoClient = require('mongodb').MongoClient; var url = "mongodb://localhost:27017/"; MongoClient.connect(url, function(err, db) if (err) throw err; var dbo = db.db("mydb"); var mysort = name: 1 }; dbo.collection("cu,collection.find(query[[[, fields], options], callback]);. Where. query - is a query object, defining the conditions the documents need to apply; fields - indicates which fields should be included in the response (default is all); options - defines extra l,serializeFunctions Boolean, default:false}, serialize functions on the document. raw Boolean, default:false}, perform all operations using raw bson objects. pkFactory ... findOne(hello:'world_no_safe'}, function(err, item) assert.equal(null, err), The easiest way is to use a Cursor (reference): var cursor = db.collection('test').find(); // Execute the each command, triggers for each document cursor.each(function(err, item) // If the item is null then the cursor is exhausted/empty and clos, You can use the not equals '$ne' for comparation collection.findAll(a: '$ne':b }}, function(err, cursor) });. Check out this advanced queries manual page for more detailed explanations., There is an example in the docs for Advanced Queries that's exactly what you want: db.collection.find( "field" : $gt: value1, $lt: value2 } } ); // value1 < field < value., did you try this way var ObjectId = require('mongodb').ObjectId; user_collection.find("_id":$in: ["55efa50a6f002c766e8b4571", "56e9cc2d6f002ccf028b4567"]} })....,.find() will return a Cursor object for you to work with. If all you are interested in is getting all the results in an array you can do: collection.find().toArray(function(err, docs) console.log(docs); });. But you can also iterate the cursor too: colle
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 node.js mongodb.find all 相關參考資料
Node.js MongoDB Find - W3Schools
Find One. To select data from a collection in MongoDB, we can use the findOne() method. The findOne() method returns the first occurrence in the selection. The first parameter of the findOne() method ... https://www.w3schools.com Node.js MongoDB Query - W3Schools
Filter the Result. When finding documents in a collection, you can filter the result by using a query object. The first argument of the find() method is a query object, and is used to limit the search... https://www.w3schools.com Node.js MongoDB Sort - W3Schools
var MongoClient = require('mongodb').MongoClient; var url = "mongodb://localhost:27017/"; MongoClient.connect(url, function(err, db) if (err) throw err; var dbo = db.db("mydb&q... https://www.w3schools.com Queries — MongoDB Node.JS Driver 1.4.9 documentation
collection.find(query[[[, fields], options], callback]);. Where. query - is a query object, defining the conditions the documents need to apply; fields - indicates which fields should be included in t... https://mongodb.github.io Collection() — MongoDB Node.JS Driver 1.4.9 documentation
serializeFunctions Boolean, default:false}, serialize functions on the document. raw Boolean, default:false}, perform all operations using raw bson objects. pkFactory ... findOne(hello:'world_no_s... https://mongodb.github.io node.js - nodejs - mongodb native find all documents - Stack Overflow
The easiest way is to use a Cursor (reference): var cursor = db.collection('test').find(); // Execute the each command, triggers for each document cursor.each(function(err, item) // If the i... https://stackoverflow.com node.js - nodejs - mongodb - how to find all where a != b? - Stack ...
You can use the not equals '$ne' for comparation collection.findAll(a: '$ne':b }}, function(err, cursor) });. Check out this advanced queries manual page for more detailed explanation... https://stackoverflow.com NodeJS + MongoDB: find() where 'value' : < 5 AND >1} - Stack ...
There is an example in the docs for Advanced Queries that's exactly what you want: db.collection.find( "field" : $gt: value1, $lt: value2 } } ); // value1 < field < value. https://stackoverflow.com Node.js MongoDB Find all by _id - Stack Overflow
did you try this way var ObjectId = require('mongodb').ObjectId; user_collection.find("_id":$in: ["55efa50a6f002c766e8b4571", "56e9cc2d6f002ccf028b4567"]} }).... https://stackoverflow.com node.js - nodejs get find results in mongodb - Stack Overflow
.find() will return a Cursor object for you to work with. If all you are interested in is getting all the results in an array you can do: collection.find().toArray(function(err, docs) console.log(doc... https://stackoverflow.com |