MongoDB

1. Lbs geo-Spatial indexAbout lbs related items, generally store the latitude and longitude coordinates of each location, if you want to query nearby sites, you need to set up an index to improve query efficiency. MongoDB establishes a geospatial

1, first download Mongodb-java-driver the latest version is 2.9.32. The following is the basic CRUD sample code:1 PackageMongoDB;2 3 ImportCom.mongodb.BasicDBObject;4 ImportCom.mongodb.DB;5 Importcom.mongodb.DBCollection;6

Recently has been using MongoDB, sometimes need to use statistics, on the Internet to check some information, the most suitable use is to use aggregate, the following introduction of their own use of experience.Other people have written, I do not

No more nonsense.1: Download the Nodejs packageas follows: http://www.nodejs.org/download/Download source code version needs to be extracted to its directory execution./configure, then make && make install;and binaries tar.gz after decompression can.

1, MongostatTo view statistics for a running MongoDB instance2. MMS (MongoDB monitoring Service)1) InstallationRpm-u mongodb-mms-monitoring-agent-2.1.4.51-1.i386.rpm2) configuration Visit https://mms.mongodb.com/settings Select the

Http://www.cnblogs.com/viprx/archive/2012/09/06/2673693.htmlThe basic syntax for MONGODB conditional queries.Query.all ("name", "a", "B");//match array with multiple elementsQuery.and (Query.eq ("name", "a"), Query.eq ("title", "T"));//satisfy

(1) Go to MongoDB Download Center : http://www.mongodb.org/downloadsWe recommend using these binary distributions (binary version is officially recommended) !) (2) according to their actual system environment , download the required files, mine is

Geo-index support is one of the highlights of MongoDB , which is one of the reasons why the world's most popular LBS service Foursquare choose MongoDB. We know that the usual database index structure is a B + Tree, and how to convert a geographic

1. install and configure MongoDB 1. obtain the latest version: wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.0.2.tgz2. Extract the package and run it. Tar zxvf mongodb-linux-x86_64-2.0.2.tgztar zxvf mongodb-linux-x86_64-2.0.2.tgzcd/usr/

Planning Scheme Assume that you will use an application that generates the report. This application requires data in the DEPARTMENT table of the SAMPLE database. Instead of copying data directly from the source table, you want to copy the changes to

Today we will mainly talk about the creation and maintenance of DB2 parallel indexes. DB2 UDB for iSeries can use parallel processing to create SQL indexes and logical files marked with key values (that is, CRTLF command ). DB2 parallel indexing is

This article describes how to correctly parse the current time of DB2. The following article will provide you with a correct resolution solution for obtaining the current time of DB2, the following is a detailed description of the related content of

The following articles mainly introduce the actual installation process of DB2 Personal Edition in Linux. DB2 Personal Edition is a low-price commercial hardware (commodity hardware) A single-user RDBMS running on a desktop. DB2 PE can be used for

This article mainly describes the actual operation process of the DB2 linked list storage process. In actual operations, we generate a linked list based on the T_depbal account balance table and transaction flow meter. In the zipper table, the start

The following articles mainly describe the use and proper maintenance of the DB2 back archive. Do we want to manage IBM in a better way?®DB2®For Linux®Or AIX®Diagnostic files on the server? If so, this article will help you. A script is provided to

This article mainly introduces the preparation description before the DB2 database backup, including the factors for setting the database to be restored, the preparations before the DB2 backup and before the DB2 recovery, the following is a detailed

This article focuses on the description of the DB2 database CODESET in the Linux operating system. I saw the description of the DB2 database CODESET in the Linux operating system on the relevant website two days ago, let's share it with you. 1.

This article mainly describes the correct solution for the DB2 file system to be full. This article first analyzes the solution by listing error cases and then provides the correct solution, the following is a detailed description of the main

When using the DB2 database, if the tablespace is full, how can we resize it? The following describes how to expand the tablespace of a DB2 database for your reference. 1) Example of directly adding a container: Db2 "alter tablespace payroll add

IntroductionSometimes you want to temporarily disable a table trigger. For example, although you may need a trigger to perform daily SQL operations, you may not want to trigger those triggers when running a specific script. The standard practice is