Node JS - Node js MongoDB Select Record - MongoDB - Node - Node JS tutorial - webnode




Related nodejs article tags - node js - node js tutorial - node js examples

How to Select Record of MongoDB in Node.js?

  • In node.js select record is used to select a data from a table in mongoDB
  • This method returns the first record of the collection.
  • learn nodejs - node-js tutorial - node js - mongodb select command - mongodb find command - nodejs examples -  nodejs programs

Select Single Record

  • The findOne() method is used to select a single data from a collection in MongoDB.
  • To select data from a table in MongoDB, we can use the findOne() method.
  • The first parameter of the findOne() method is a query object.
 node-js mongodb select data

Learn Node js - node js Tutorial - node-js mongodb select data - - node - Node js Examples

Example

  • Select the first record from the employees collection. Create a js file named "select.js", having the following code:
Related nodejs article tags - node js - node js tutorial - node js examples

select.js

var http = require('http');  
var MongoClient = require('mongodb').MongoClient;  
var url = "mongodb://localhost:27017/MongoDatabase";  
MongoClient.connect(url, function(err, db) {  
  if (err) throw err;  
  db.collection("employees").findOne({}, function(err, result) {  
    if (err) throw err;  
    console.log(result.name);  
    db.close();  
  });  
});  

Open the command terminal and run the following command: Node select.js

Related nodejs article tags - node js - node js tutorial - node js examples

Output:

 select single record in node.js mongodb select record

Learn Node js - node js Tutorial - select single record in node.js mongodb - node - Node js Examples

Select Multiple Records

  • The find() method is used to select all the records from collection in MongoDB.
  • To select data from a table in MongoDB, we can also use the find() method.
  • The find() method returns all occurrences in the selection.
  • The first parameter of the find() method is a query object.

Example

  • Select all the records from "employees" collection. Create a js file named "selectall.js", having the following code:
Related nodejs article tags - node js - node js tutorial - node js examples

selectall.js

var MongoClient = require('mongodb').MongoClient;  
var url = "mongodb://localhost:27017/MongoDatabase";  
MongoClient.connect(url, function(err, db) {  
  if (err) throw err;  
  db.collection("employees").find({}).toArray(function(err, result) {  
    if (err) throw err;  
    console.log(result);  
    db.close();  
  });  
});  

Open the command terminal and run the following command: Node selectall.js

Related nodejs article tags - node js - node js tutorial - node js examples

Output

 multiple records in node.js mongodb select record

Learn Node js - node js Tutorial - multiple records in node.js mongodb select record - node - Node js Examples


This wikitechy technological portal provides you whole lot of information related to the topics such as mongodb tutorial , what is node js , express js tutorial , node js tutorial pdf , learn node js , node js tutorial for beginners , node js tutorial w3schools , node js express , javascript for beginners , node js express tutorial , node js tutorial point , node js book , node js server , note js , node js mongodb , what is node js used for , why node js , node tutorial , node js basics , tutorialspoint node js , node express , node js sample application , nodeschool , node js for beginners , express tutorial , node js application , use of node js , npm tutorial , node js org , node js training , node js online training , node js tutorial beginner , how to use node js , node js hello world , express node js , node js mongodb tutorial , nodejs http , why use node js

Related Searches to Node.js MongoDB Select Record

Adblocker detected! Please consider reading this notice.

We've detected that you are using AdBlock Plus or some other adblocking software which is preventing the page from fully loading.

We don't have any banner, Flash, animation, obnoxious sound, or popup ad. We do not implement these annoying types of ads!

We need money to operate the site, and almost all of it comes from our online advertising.

Please add wikitechy.com to your ad blocking whitelist or disable your adblocking software.

×