MongoDB - 随笔分类 - huey2672

MongoDB - Introduction to MongoDB, Databases and Collections

摘要：MongoDB stores BSON documents, i.e. data records, in collections; the collections in databases. Databases In MongoDB, databases hold collections of do 阅读全文

posted @ 2016-12-08 17:01 huey2672 阅读(407) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations, Bulk Write Operations

摘要：Overview MongoDB provides clients the ability to perform write operations in bulk. Bulk write operations affect a singlecollection. MongoDB allows app 阅读全文

posted @ 2016-12-05 11:34 huey2672 阅读(659) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations, Delete Documents

摘要：Delete Methods MongoDB provides the following methods to delete documents of a collection: Delete at most a single document that match a specified fil 阅读全文

posted @ 2016-12-05 10:39 huey2672 阅读(951) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations, Insert Documents

摘要：MongoDB provides the following methods for inserting documents into a collection: db.collection.insertOne() db.collection.insertMany() db.collection.i 阅读全文

posted @ 2016-12-05 10:01 huey2672 阅读(400) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations, Update Documents

摘要：Update Methods MongoDB provides the following methods for updating documents in a collection: Updates at most a single document that match a specified 阅读全文

posted @ 2016-12-01 21:12 huey2672 阅读(731) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations, Query Documents, Iterate a Cursor in the mongo Shell

摘要：The db.collection.find() method returns a cursor. To access the documents, you need to iterate the cursor. However, in the mongo shell, if the returne 阅读全文

posted @ 2016-12-01 06:43 huey2672 阅读(382) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations, Query Documents, Query for Null or Missing Fields

摘要：Different query operators in MongoDB treat null values differently. The examples on this page use the db.collection.find() method in the mongo shell. 阅读全文

posted @ 2016-12-01 06:13 huey2672 阅读(192) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations, Query Documents, Project Fields to Return from Query

摘要：By default, queries in MongoDB return all fields in matching documents. To limit the amount of data that MongoDB sends to applications, you can includ 阅读全文

posted @ 2016-12-01 05:56 huey2672 阅读(366) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations, Query Documents

摘要：Query Method MongoDB provides the db.collection.find() method to read documents from a collection. The db.collection.find() method returns a cursor to 阅读全文

posted @ 2016-12-01 05:31 huey2672 阅读(344) 评论(0) 推荐(0)

MongoDB - MongoDB CRUD Operations

摘要：CRUD operations create, read, update, and delete documents. Create Operations Create or insert operations add new documents to a collection. If the co 阅读全文

posted @ 2016-12-01 03:05 huey2672 阅读(252) 评论(0) 推荐(0)

MongoDB - The mongo Shell, mongo Shell Quick Reference

摘要：mongo Shell Command History You can retrieve previous commands issued in the mongo shell with the up and down arrow keys. Command history is stored in 阅读全文

posted @ 2016-12-01 02:14 huey2672 阅读(288) 评论(0) 推荐(0)

MongoDB - The mongo Shell, Write Scripts for the mongo Shell

摘要：You can write scripts for the mongo shell in JavaScript that manipulate data in MongoDB or perform administrative operation. For more information abou 阅读全文

posted @ 2016-12-01 00:35 huey2672 阅读(441) 评论(0) 推荐(0)

MongoDB - The mongo Shell, Access the mongo Shell Help

摘要：In addition to the documentation in the MongoDB Manual, the mongo shell provides some additional information in its “online” help system. This documen 阅读全文

posted @ 2016-12-01 00:02 huey2672 阅读(222) 评论(0) 推荐(0)

MongoDB - The mongo Shell, Configure the mongo Shell

摘要：Customize the Prompt You may modify the content of the prompt by setting the variable prompt in the mongo shell. The promptvariable can hold strings a 阅读全文

posted @ 2016-11-30 23:46 huey2672 阅读(315) 评论(0) 推荐(0)

MongoDB - Introduction of the mongo Shell

摘要：Introduction The mongo shell is an interactive JavaScript interface to MongoDB. You can use the mongo shell to query and update data as well as perfor 阅读全文

posted @ 2016-11-30 23:08 huey2672 阅读(367) 评论(0) 推荐(0)

MongoDB - Introduction to MongoDB, MongoDB Extended JSON

摘要：JSON can only represent a subset of the types supported by BSON. To preserve type information, MongoDB adds the following extensions to the JSON forma 阅读全文

posted @ 2016-11-30 20:08 huey2672 阅读(881) 评论(0) 推荐(0)

MongoDB - Introduction to MongoDB, BSON Types

摘要：BSON is a binary serialization format used to store documents and make remote procedure calls in MongoDB. The BSON specification is located at bsonspe 阅读全文

posted @ 2016-11-30 17:14 huey2672 阅读(326) 评论(0) 推荐(0)

MongoDB - Introduction to MongoDB, Documents

摘要：MongoDB stores data records as BSON documents. BSON is a binary representation of JSON documents, though it contains more data types than JSON. For th 阅读全文

posted @ 2016-11-30 15:28 huey2672 阅读(239) 评论(0) 推荐(0)

MongoDB - Introduction to MongoDB, Capped Collections

摘要：Overview Capped collections are fixed-size collections that support high-throughput operations that insert and retrieve documents based on insertion o 阅读全文

posted @ 2016-11-30 13:34 huey2672 阅读(324) 评论(0) 推荐(0)

MongoDB - Installing MongoDB on Linux

摘要：1. 下载最新稳定版本的安装包。 2. 解压安装包。 3. 设置环境变量。 4. 创建数据目录。 5. 启动服务。 6. 运行 MongoDB Shell 阅读全文

posted @ 2016-11-30 11:13 huey2672 阅读(269) 评论(0) 推荐(0)

随笔分类 - MongoDB