MongoDB

The first step to download MongoDB:Download MongoDB version of Windows, with 32-bit and 64-bit versions, downloaded according to the operating system:http://www.mongodb.org/downloadsUnzip to the specified directory, such as E:/mongodb.The second

MongoDB vs. mysql command comparisonThe traditional relational database is usually composed of three hierarchical concepts of database, table, record, and MongoDB is made up of database, collection (collection), Document object composed of three

Chapter III index operations and performance testing The importance of indexes under big data is not much to say.The following test used a MongoDB client tool Robomongo, you can choose to download on the Internet. Inserting test dataInsert 1

Modify a recordOverviewMongoDB provides the update () method for updating records. This method accepts the following parameters:A JSON object that updates the criteria for matching records, an update action JSON object for declaring the update

The quickest way to learn new technology is to do the project. After the first day of the environment was set up, I was ready to build a Web system based on Nodejs+extjs+mongodb.Environment Construction: http://blog.csdn.net/jrainbow/article/details/

1. IntroductionTossing MongoDB for a few hours finally had a result. Uh! Now let's summarize it briefly.In fact, my requirement is very simple, is to call the library function of MongoDB in C + + code, that is to get mongoclient.lib. Originally want

NoSQL database changes the disadvantage of relational database, easier integration, distributed, no mode, failure recovery and other characteristics, is a step by step meal relationship Database market, as a time-keeping with the code of the farmers

This article uses the official C # Driver to implement storage in MongoDB, querying spatial data (vectors)storage of spatial dataIn this example, the vector feature space information and the attribute table are read from a vector file (shapefile

New features of the latest IBM DB2 version 9.7.2 include: ◆ The new field types include NCHAR, NVARCGAR, NCLOB, and UDF. All these types support default values and naming parameters; ◆ Movable tablespace is implemented. At the same time, the new

This article describes how to plan and implement the stored procedure of DB2 9, this article mainly helps you understand the basic features of the stored procedure on the host DB2 and how to implement classification in actual operations. With the

This article mainly describes the actual operation steps for identifying tables and packages that DB2 does not use indexes. If you do not use indexes for DB2, if you are interested in the actual operation steps for tables and packages, you can click

This article mainly describes how to optimize the performance of DB2 application systems. We all know that DB2 database is a high-performance large-scale relational DB2 management system, it is widely used in the customer/server architecture. The

The following articles mainly show you how to make full contact with the DB2 catalog word correctly. Many people in the DB2 database do not have a deep understanding of the word catalog, specifically, cataloguing includes cataloguing nodes and

The following articles mainly describe how to correctly install the DB2 database in linux. I saw the correct installation steps for the DB2 database on the relevant website two days ago, I will share it with you. The following is a detailed

This article mainly introduces some summaries of DB2 databases that beginners must read. I accidentally saw some general information about DB2 on a website. I think it is quite good to share with you today. The following is a detailed description of

The following articles mainly introduce the Error Code 144 When DB2 Content Manager8.3 is correctly installed. The following is a prompt when DB2 Content Manager8.3 is installed, description of the specific content of the Error Code 144 prompt,

The following articles mainly describe the actual operation steps of the DB2 recovery command. If you want to know the actual operation steps of the DB2 recovery command, the following articles will unveil its secrets. The following is a detailed

Some problems often occur when the DB2 database is detached. The following problems are analyzed and corresponding solutions are provided, if you have encountered a similar problem when detaching A DB2 database, take a look. 1) run the SETUP program

I believe everyone knows about the DB2 stored procedure. The following describes two pointer loops in the DB2 stored procedure. I hope this will help you learn about the DB2 stored procedure. Pointer loops in DB2 stored procedures: There are two

DB2 online backup is one of the most commonly used functions. 1. run the following command to check the Unix/Linux parameters: db2 get db cfg for xcldb | grep "USEREXIT" db2 get db cfg for xcldb | grep "LOGRETAIN" db2 get db cfg for xcldb | grep