MongoDB select from
Select one
var http = require('http');
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/music";
MongoClient.connect(url, function(err, db) {
if (err) throw err;
var query = { musicDirector: 'AR Rahman' };
db.collection("songdetails").find(query).toArray(function(err, result) {
if (err) throw err;
console.log(result);
db.close();
});
});
sort
var http = require('http');
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/uki";
MongoClient.connect(url, function(err, db) {
if (err) throw err;
var mysort = { name: -1 }; db.collection("students").find().sort(mysort).toArray(function(err, result) {
if (err) throw err;
console.log(result);
db.close();
});
});
Remove
var http = require('http');
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/uki";
MongoClient.connect(url, function(err, db) {
if (err) throw err;
var myquery = { address: 'Mountain 21' };
db.collection("students").remove(myquery, function(err, obj) {
if (err) throw err;
console.log(obj.result.n + "
document(s) deleted");
db.close();
});
});
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