mongodb add index

Document directory 1. What is MongoDB? 3. MongoDB hands-on experience sharing 4. MongoDB and open-source projects 5. MongoDB client and tool set 7. MongoDB performance and Optimization 9. MongoDB news Address: http://blog.nosqlfan.com/html/

First, the index introductionIn MongoDB, indexes are used to support efficient queries. If there is no index, MONGODB must scan each document in the entire collection to find a matching document. However, if an appropriate index is established,

Original: MongoDB Data summaryThe previous Redis Data summary topic is very popular, here the MongoDB series of information is also a simple collation. Hope to be useful to everyone. Last update time: 2013-04-22What is 1.MongoDB? MongoDB

mongodb-sharding Deployment ScenariosFirst, Deployment Environment Five hosts: amongoshard01:10.212.74.43 amongoshard02:10.212.84.4 amongoshard03:10.212.98.23 amongoshard04:10.212.46.5 amongoshard05:10.212.

What is 1.MongoDB? MongoDB Introduction ppt Sharing MongoDB Gridfs Introduction ppt Two First knowledge of MongoDB Gridfs MongoDB Gridfs Introduction A NoSQL and MongoDB introduction ppt MongoDB: Next Generation MySQL?

Indexes can often greatly improve the efficiency of queries, and if there is no index, MongoDB must scan every file in the collection and select those records that meet the query criteria when reading the data. This scan full set of query efficiency

MongoDB cluster building (master-slave replication, replica and) (5), mongodb master-slaveVi. Architecture ManagementMongodb master-slave clusters are divided into two types:1: master-Slave replication (master-Slave) -- The Slave server will not

Learning MongoDB 8: MongoDB index (index restrictions) (2), mongodb IndexI. Introduction In the previous article, we introduced basic index operations through db. collection. the createIndex (keys, options) syntax creates an index. We will continue

Previous wordsIndexes can often greatly improve the efficiency of queries, and if there is no index, MongoDB must scan every file in the collection and select those records that meet the query criteria when reading the data. This scan full set of

1.MongoDB Simple Description A MongoDB is an open source database system written in C + + language based on Distributed file storage, which aims to provide scalable and high-performance data storage solutions for Web applications. b MongoDB is a