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MongoDBã¯æªã ããªããªãããã¯â¦ â¦ãã¼ã¿ãç¡ããï¼ã½ã¼ã¹ï¼1ã2ï¼ã â¦å®éãé·æéãããã©ã«ãã§ã¨ã©ã¼ãç¡è¦ãç¶ããä½ããã£ã¦ããã¹ã¦ã®åä¸æ¸ãè¾¼ã¿ãæåããã¨ã¿ãªããï¼ 32ãããã®ã·ã¹ãã ã§3GBããããã使ç¨ããããMongoDBã®å¶éã«ãã£ã¦ä½ã®è¦åããªãã«å ¨ãã¼ã¿ã失ããã¨ã«ãªã£ãï¼ã â¦å®£ä¼ãã¦ããã¦ã¼ã¹ã±ã¼ã¹ã§ã§ããé ãããããæ©ãã¨ä¸»å¼µããã«ã¯å®å ¨ã«è¨¼æ ã«æ¬ ãã¦ããï¼ã½ã¼ã¹ï¼3ã4ï¼ã â¦ã»ã¼å ¨ã¦ã®ã¦ã¼ã¹ã±ã¼ã¹ã§ãæé»ã®ã¹ãã¼ãã¨ããæªããç¿æ £ãå¼·è¦ãã¦ããï¼ã½ã¼ã¹ï¼4ï¼ã â¦ãããã³ã°ã«åé¡ãããï¼ã½ã¼ã¹ï¼4ï¼ã â¦ã»ãã¥ãªãã£ã®åé¡ã«ãªãããããå¿çæéãé ·ãé ããæ±ãã¦ããäººå ¨å¡ã«èªè¨¼ãªãã§å ¨ãã¼ã¿ããããã¦ãã¾ãã¨ããå±éºãªããã©ã«ãè¨å®ããããããã®ã«2å¹´ããã£ãï¼ã½ã¼ã¹ï¼5ï¼ã â¦ACIDç¹æ§ã«æºæ ãã¦ããªãï¼ã½ã¼ã¹ï¼6ï¼ã â¦æ¡å¼µãã¡ã³ããã³ã¹ããã
Node.js v4 + coã§éåæå¦çã®ããã©ã¼ãã³ã¹ã測å®ããã¨ãããå¦ã³ããã£ãã®ã§ã¡ã¢ã ãã£ãã æåå¼·ä¼ã§éåæå¦çã«ã¤ãã¦èª¿ã¹ã¦ã¿ãã¨ãããcoã使ã£ãæ¸ãæ¹ãããªãã¤ã±ã¦ããªã¨æãã¾ããã ããããã©ã¼ãã³ã¹çã«å¿é ã ããã§å®çªã®Async.jsã¨æ¯è¼ãã¦ã¿ããã¨ã«ãã¾ããã è¨æ¸¬ã¾ã§ã®æµã ãã£ããã ããDBã«ã¤ãªããã¨æããã¢ã³ã´ããã¨ç¹ãã¾ããã æºå npm i co async mongodb ã½ã¼ã¹ã³ã¼ã 'use strict'; const async = require('async'); const co = require('co'); const MongoClient = require('mongodb').MongoClient; const TRY_TIMES = 1000; const url = 'mongodb://localhos
æè¿ãNodeä¸ã§ã®Promiseã®åå¼·ãå ¨ã0ãããã¦ã¡ãã£ã¨ã ã解ã£ã¦ããã®ã§ãèªä½ã®codeããã©ã·ã®è£ãã¦ãã²ãããè²¼ãä»ãã¾ããããã§ã¯ãNode.jsä¸ã§bluebirdã使ã£ã¦ãã¾ããä¸ã¤ã§ãåèã«ãªãç©ãããã°å¹¸ãã§ãã ãªããcoffee scriptçãç¥ããã人ã¯ãä¸æ¦xxx.jsã¨ãã¦ä¿åãã¦ãjs2coffee xxx.jsãå®è¡ï¼ #coffee scriptåããæã«ããããç®æ ".catch" ãjs2coffeeã§ã¨ã©ã¼ãåã åå ã®è©³ç´°ã¯ãã¡ããåç § jsâcoffeeå¤æã¯å¥ã®ãã®Tool使ãäºã§åé¿ã§ãã¾ãã Webstormã".then", ".catch" ãæ£ããindentå¦çãã¦ãããªã ç§ã¯javascriptã®IDEã«webstorm (v8.0)ã使ã£ã¦ãã¾ãããpromiseã®.then, .catchãæ£ããcoffee sc
ããã«ã¡ã¯ã@yoheiMuneã§ãã 以åã«ããã³ãã¨ã³ãã¨ã³ã¸ãã¢ã«ãªã¹ã¹ã¡ãªãã¼ã¿ãã¼ã¹ãMongoDBã«å ¥éã¨ããã³ãã¨ã³ãã¨ã³ã¸ãã¢ã«ãã§ããMongoDBã使ã£ããã°åæã®ããã°ãæ¸ããã®ã¡ãMongoDBãå¼ãç¶ã使ã£ã¦ãã¾ãããfindã®ä½¿ãæ¹ã調ã¹ããã¨ãå¤ããä»åã¯ããããããã°ã«æ®ãã¦ããããã¨æãã¾ãã https://flic.kr/p/55XJ83 ç®æ¬¡ Mongoã®æ¤ç´¢ã¡ã½ããã¯å¤æ©è½ Mongoã®findãfindOneãcountãdistinctã¯æ¤ç´¢ãè¡ããã¨ãã§ããã¡ã½ãããã¡ã§ãã使ãã¨ãããããã®ã¦ã¼ã¹ã±ã¼ã¹ã«åããã使ãåãããã¦ããå¿ è¦ããããããããã®ã¡ã½ããã®æ©è½ãããç¨åº¦ç¥ã£ã¦ããå¿ è¦ãããã¾ããä»åã¯SQLã®selectæãMongoã§å®ç¾ããã«ã¯ã¨ããåãå£ã§ãMongoã®æ¤ç´¢æ©è½ãå¦ãã§ã¿ããã¨æãã¾ãã ä»åå©ç¨ãããã¼ã¿ ä»å
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2014å¹´06æ16æ¥16:52 ã«ãã´ãªDBtool MongoDBã®GUIãã¼ã«ãæ¯è¼ãã¦ã¿ã ã¿ãªããããã«ã¡ã¯ã (æ ª)adingoã§private DMPã¨å¼ã°ããcosmi Relationship Suiteã®éçºããã¦ãã¾ãã @tana_raãã¨ãããã§ãã ä¸ã®ä¸ã«ã¯ã¢ã«ãã¡ãããï¼æåã溢ãã¦ãã¦æ··ä¹±ãã¾ããããAWSã¨åºåæ¥çãæ··ããã¨ã«ãªã¹ã§ãã AWSã¨ãEMRã¨ãSSPã¨ããDMPããã®ä¸ã¤ã§ããã ã¡ãªã¿ã«DMPã¯Data Management Platformã®ç¥ã§ãã ã¨ããã§cosmiã§ã¯ããã¼ã¿ã®ç®¡çã«MySQLã¨MongoDBãå©ç¨ãã¦ãã¾ãã ç§ã¯éçºæã«ã¯MySQLã®GUIãã¼ã«ãããå©ç¨ããã®ã§ããã MongoDBã®GUIãã¼ã«ã£ã¦ãã¾ãèããªããªã¨æã£ãã®ã§æ¢ãã¦ã¿ã¾ããã ä»æ¥ã¯è§¦ã£ã¦ã¿ãMongoDBã®GUIãã¼ã«ãç´¹ä»ãã¦ã¿ããã¨æ
ã¤ã³ã¹ãã¼ã« ã¾ãbrew install mongodbã§ããã % brew search mongodb mongodb ok % brew install mongodb ==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/mongodb-2.6.5.yosemite.bottle.2.tar.gz ######################################################################## 100.0% ==> Pouring mongodb-2.6.5.yosemite.bottle.2.tar.gz ==> Caveats To have launchd start mongodb at login: ln -sfv /usr/local/
MongoDB is a document database designed for ease of application development and scaling. You can run MongoDB in the following environments: MongoDB Atlas : The fully managed service for MongoDB deployments in the cloud MongoDB Enterprise : The subscription-based, self-managed version of MongoDB MongoDB Community : The source-available, free-to-use, and self-managed version of MongoDB
0.5 MongoDB injection ååã®è¨äºã§Node.js+MongoDBãªãæ®éã¯èå¼±æ§åºãªãããæ°ã«ããªãã¦ããã§ããããçã¨æ¸ããã®ã§ããã åèªèº«ãä»ã¾ã§ããã¼ã«èå¼±ãªã³ã¼ããæ¸ãã¦ãã¾ããã»ã»ã»ãã¾ãã¯ãã®è©±ããã æ¦è¦ Node.js+MongoDBã§MongoDBã®ãã©ã¤ãã使ã£ãæããSQLæãã®ããã«æååã§ã¯ã¨ãªãæããäºã¯ããã¾ãããæ®éã«JavaScriptã®ææ³ã¨ãã¦ãã¯ã¨ãªãæ¸ãäºãã§ãã¾ãã ããã¯ããªãã¡ãã¨ã¹ã±ã¼ãå¦çã®ãããªãã®ã¯å¿ è¦ãªããªãã ãã¨ãã°ããæååã§æ¤ç´¢ãããããªã¯ã¨ãªãæããã¨ããå¤é¨ããã©ããªå¤ãªæååãåãåããã¨ãããã®ã¾ã¾ãã®æååã§æ¤ç´¢ã§ãããã¨ãããã¨ã§ãã ãããæååãªããâ¦â¦â¦ èå¼±æ§ã®ããç¶æ³ Node.jsã¯ãããããããWebãµã¼ãã¨ãã¦åãã®ã§ããã æ®éã¯ãæä½ã§ãExpressã¨ããèããã¬ã¼ã
mongoDB ã® stream ã使ããã¨ãã¦ãµã³ãã«ã³ã¼ããæ¢ãã¨æå¤ã¨è¦ã¤ãããªãã®ã§ã¡ã¢ var MongoClient = require('mongodb').MongoClient; function getIds (db, callback) { var condition = {}; // something var stream = db.collection('userActionLog').find(condition, {userId:1}).stream(); stream.on('error', function (err) { db.close(); return callback(err); }); var seen = {}, var ids = []; stream.on('data', function (doc) { if (!seen[doc.u
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