SQL to Aggregation Mapping Chart - MongoDB Manual v8.0
The aggregation pipeline allows MongoDB to provide native aggregation capabilities that corresponds to many common data aggregation operations in SQL. The following table provides an overview of common SQL aggregation terms, functions, and concepts and the corresponding MongoDB aggregation operators:
MongoDBã§ECサイトを実é‹ç”¨ã™ã‚‹3ã¤ã®ãƒ†ã‚¯ãƒ‹ãƒƒã‚¯ | Tokyo Otaku Mode Blog
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MongoDB : サルã§ã‚‚ã‚ã‹ã‚‹MapReduceãã®ï¼’：ãƒã‚°ã®æ™‚間別集計を行ㆠ· DQNEO日記
RDBMSã§ã¯ä¸‹è¨˜ã®ã‚ˆã†ãªSQLã«ãªã‚‹ã¨æ€ã„ã¾ã™ã€‚(PostgreSQLã§ã®ä¾‹) SELECT to_char(timestamp, 'yyyy-mm-dd HH24'::text) AS ymdh ,count(*) FROM accesslog WHERE '2011-12-01' <= timestamp AND timestamp < '2011-12-02' GROUP BY ymdh ORDER BY ymdh ; MapReduceを実行ã™ã‚‹ // 日本標準時を扱ã†ãŸã‚ã®ãƒ¦ãƒ¼ãƒ†ã‚£ãƒªãƒ†ã‚£é–¢æ•° var JSTDate = function (str) { return ISODate(str + "T00+09:00"); }; // 日付範囲指定ã§å¯¾è±¡ã‚’絞る。 // ã“ã®ã‚ˆã†ã«ä¸€æ™‚変数ã«è¨˜æ†¶ã•ã›ã¦ãŠãã¨ä¾¿åˆ©ã€‚ var query = { "timestamp" : { "$gt
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3. MongoDB 2.2 リリースノート • ã“ã®ã‚¹ãƒ©ã‚¤ãƒ‰ã§ã¯ リリースノートをもã¨ã«ã€2012/08/29 ã«ãƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸ MongoDB 2.2.0ã®æ–°æ©Ÿèƒ½ã‚’解説ã—ã¾ã™ • リリースノート http://docs.mongodb.org/manual/release-notes/2.2/ http://jp.docs.mongodb.org/manual/release-notes/2.2/ • 丸ã®å†…MongoDB勉強会#3 MongoDB 2.2.0 新機能紹介 https://github.com/syokenz/marunouchi- mongodb/tree/master/20120926/syokenz コマンドレベルã§ã®æ‰‹é †ãŒã‚ã‚Šã¾ã™ 3 4. MongoDB 2.2ã®æ–°æ©Ÿèƒ½ï¼šãƒ€ã‚¤ã‚¸ã‚§ã‚¹ãƒˆ • 並列処ç†ã®å¼·åŒ–（Concurrency Improvements） •
Clean Mongodb in UnitTest, Rspec, Cucumber using Mongoid | DIG RUBY
h2. Rails UnitTest ==== in file in @class ActiveSupport::TestCase@ add teardown :clean_mongodb def clean_mongodb puts cleaning mongodb....Rails UnitTest in file test/test_helper.rb in class ActiveSupport::TestCase add teardown :clean_mongodb def clean_mongodb puts "cleaning mongodb...." Mongoid.database.collections.each do |collection| unless collection.name =~ /^system\./ collection.remove
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Spring Bootã«ã‚ˆã‚‹APIãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰æ§‹ç¯‰å®Ÿè·µã‚¬ã‚¤ãƒ‰ 第2版 何åƒäººã‚‚ã®é–‹ç™ºè€…ãŒã€InfoQã®ãƒŸãƒ‹ãƒ–ック「Practical Guide to Building an API Back End with Spring Bootã€ã‹ã‚‰ã€Spring Bootを使ã£ãŸREST API構築ã®åŸºç¤Žã‚’å¦ã‚“ã 。ã“ã®æœ¬ã§ã¯ã€å‡ºç‰ˆæ™‚ã«æ–°ã—ãリリースã•ã‚ŒãŸãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã‚ã‚‹ Spring Boot 2 を使用ã—ã¦ã„る。ã—ã‹ã—ã€Spring Boot3ãŒæœ€è¿‘リリースã•ã‚Œã€é‡è¦ãªå¤‰...
Tengine framework Guide — Tengine framework Guide
Tengine framework Guide¶ Tengine framework(以下ã€Tengine)ã¨ã¯åˆ†æ•£ç’°å¢ƒã®ãƒªã‚½ãƒ¼ã‚¹ãƒ»ãƒžãƒã‚¸ãƒ¡ãƒ³ãƒˆã¨ã‚¸ãƒ§ãƒ–制御を統括的ã«æ‰±ã†é‹ç”¨ã‚¨ãƒ³ã‚¸ãƒ³ã§ã™ã€‚ ドã‚ュメント¶ Tengineã‹ã‚‰å‘¼ã³å‡ºã™ãƒãƒƒãƒãªã©Tengineを利用ã—ãŸã‚¢ãƒ—リケーション開発ã®æ–¹æ³•ã‚„Tengineã®é‹ç”¨æ–¹æ³•ãªã©ã®æŠ€è¡“æƒ…å ±ã‚’æä¾›ã—ã¾ã™ã€‚
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CONSOLE COMMANDS help show all the console commands (same as this section) show dbs show database names show collections show collections in current database show users show users in current database show profile show most recent system.profile entries with time >= 1ms use <db name> set curent database to <db name> db.help() help on DB methods db.foo.help() help on collection methods db.foo.find()
Java MongoDB : Update document - Mkyong.com
In this tutorial, we show you how to use Java MongoDB API collection.update() to update documents. Test Data Assume following data / documents are inserted. { "hosting" : "hostA", "type" : "vps", "clients" : 1000 }, { "hosting" : "hostB", "type" : "dedicated server", "clients" : 100 }, { "hosting" : "hostC", "type" : "vps", "clients" : 900 } { "_id" : { "$oid" : "id"} , "hosting" : "hostA" , "type
2d Index Internals - MongoDB Manual v8.0
This document explains the internals of 2d indexes. This material is not necessary for normal operations or application development, but may be useful for troubleshooting and for further understanding. Geohash Values When you create a geospatial index on a field that contains legacy coordinate pairs, MongoDB computes geohash values for the coordinate pairs within the specified location range, then
20110514 mongo dbãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°
The document provides tips and explanations for various MongoDB commands and operations including explain, hint, setProfilingLevel, currentOp, and mongostat. It discusses using indexes to optimize queries, setting profiling levels to log slow queries, using currentOp to view currently running operations, and using mongostat to view MongoDB server statistics.Read less
ソーシャルアプリã®ãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—制作ã«MongoDBを活用
ソーシャルアプリã®ãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—制作ã«MongoDBを活用 1. ソーシャルアプリã®ãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—制作ã«MongoDBを活用～PHP+Sleepy.Mongooseã§ãŠæ‰‹è»½æ°¸ç¶šåŒ–～Fungoing LLC / Satoshi MiyauchiTwitter : @bibrost 2. Profile 宮内 è– / Satoshi Miyauchi @bibrost 自宅è¦å‚™å“¡ï¼ˆé€±ä¼‘2日） å…¼ Fungoing LLC 代表 å…¼ æ ªå¼ä¼šç¤¾ç›£æŸ»ã¨åˆ†æž システム開発担当 å…¼ æ ªå¼ä¼šç¤¾ãƒ‹ã‚¸ãƒœãƒƒã‚¯ã‚¹ å‚å…µ … etc Webデザインã€æ˜ åƒç·¨é›†ã€Webサービスã®é–‹ç™ºãªã©ãƒ»ãƒ»ãƒ»ã„ã‚ã„゠引ãã“もりフリーランス生活。ã¨æ€ã£ãŸã‚‰æœ€è¿‘ã¯ãŸã¾ã«å‡ºå‹¤ã€‚ Scalaã€MongoDBã€Solrをメインã«ã‚„ã£ã¦ã¾ã™ ※ãŠä»•äº‹ã€å”æ¥ã®ã”相談ã¯éšæ™‚å—ä»˜ä¸ Page : 1 3. Recent Works ( with Mong
MongoDB全機能解説1
This document contains links to MongoDB documentation pages about sharding, databases, collections, inserting, querying, updating, indexing, replication, and backups. It includes a link to a slideshare presentation on MongoDB sharding and links to pages explaining replica set internals and operations.Read less
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GitHub - iwazer/mongoid_cache_store: Railsã®cache_storeã«Mongoidã‹ã‚‰MongoDBを利用ã§ãるよã†ã«ã—ã¾ã™
https://github.com/shoken0x/marunouchi-mongodb/tree/master/20120926
GitHub - locomotivecms/engine: A platform to create, publish and edit sites
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GitHub - ryanong/mongoid_spacial: A Mongoid Extention that simplifies and adds support for MongoDB Geo Spacial Calculations.
GitHub - MorphiaOrg/morphia: MongoDB object-document mapper in Java based on https://github.com/mongodb/mongo-java-driver
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