Mongo Database InstallationFirst to Mongo's official website to download the installer: http://www.mongodb.org/, I downloaded the file name is: Mongodb-win32-x86_64-2008plus-2.6.4-signed.msiExecutes the setup program.NextAgree to the license
Data type base data typeMongoDB's file storage format is Bson, which supports inserting document objects and arrays into other document objects and arrays as well as JSON, extending the JSON data type. Those applications that deal with databases.
MongoDB (BSON) Data Type
In addition to the basic JSON types: string, integer, boolean, double, null, array, and object, mongo also uses special data types. These types include date, object id, binary data, regular expression, and code. Each driver
Backup and recovery are important technologies for data storage. This is only a single machine learning record operation.MongoDB supports backup and recovery. The backup format is bson and the backup format is JSON and CSV.
A) export bson formatIt
MongoDB database OverviewMongoDB is a high-performance, open-source, and non-pattern document-type database. It can be used in many scenarios to replace the traditional relational database or key/value storage mode. MongoDB is developed in C ++
Features of MongoDB
MongoDB is a document storage database with flexible storage structure
MongoDB supports complex query operations, support sequences
MongoDB uses C + + development, can do distributed extension
MongoDB is
The recent year is busy with data processing related work, with MongoDB very much, the following is the practice process of q&a, follow-up will not be updated regularly. 1. Count Statistics result errorThis is because the distributed cluster is
MongodbConceptual AnalysisNo matter what database we learn, we should learn the basic concepts, the basic concept in MongoDB is a document, a collection, a database, we introduce each one.The following table will help you understand some of the
Download driver There are two ways to download a driver: One is to install through NuGet in a C # project, and the other is via the following link: https://github.com/mongodb/mongo-csharp-driver/releases Download the MSI directly for installation or
Depending on the version number, the API may also be different. This study uses the 3.0 version number.1. The JDBC driver version number used for MongoDB is: Mongo-java-driver-3.0.0.jar2. This section simply introduces JDBC operations and does not
ConceptA Mongod service can have multiple databases, each database can have multiple tables, where the table is called collection, each collection can hold multiple documents (document), each document is Bson (binary JSON) in the form of a hard disk,
"Abstract" Today has entered the era of large data, especially large-scale Internet web2.0 application development and cloud computing needs of the mass storage and massive computing development, the traditional relational database can not meet this
Original Address http://www.cnblogs.com/nbpowerboy/p/4325692.html
"Abstract" Today has entered the era of large data, especially large-scale Internet web2.0 application development and cloud computing needs of the mass storage and massive
MongoDB installation under Windows, start to view previous: MongoDB installation detailedI. Log in to view the collection document in the database database add a document , modify the document, delete the document1. See which databases are
ArticleDirectory
The first problem: the key-value database may have a lot of keys. That's right, but it's a big mistake for MongoDB.
The second question: Is findone ({_ ID: XXX}) Faster?
Third question: Use update in detail
In
The author uses the MONGO drive is MgO, this use more people, the document is also quite complete
Website address: Http://labix.org/mgo
Document Address: Https://godoc.org/labix.org/v2/mgo
Source Address: Https://github.com/go-mgo/mgo
This is a creation in
Article, where the information may have evolved or changed.
The syntax for finding and displaying specific key-value pairs in a MongoDB shell is:
> Db.logs.Find({},{"Log":1}){
This is a creation in
Article, where the information may have evolved or changed.
The syntax for finding and displaying specific key-value pairs in a MongoDB shell is:
> Db.logs.Find({},{"Log":1}){
This is a creation in
Article, where the information may have evolved or changed.
Packaging method One, the model and the handle and the middle layer in different packages
Main
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