Mongodb Get Count

MongoDB company formerly known as 10gen, founded in 2007, in 2013 received a sum of 231 million U.S. dollars in financing, the company's market value has been increased to 1 billion U.S. dollar level, this height is well-known open source company Red Hat (founded in 1993) 20 's struggle results. High-performance, easy to expand has been the foothold of the MongoDB, while the specification of documents and interfaces to make it more popular with users, this point from the analysis of the results of Db-engines's score is not difficult to see-just 1 years, MongoDB finished the 7th ...

The scalability of the system is the main reason for promoting the development of NoSQL movement, including distributed system coordination, failover, resource management and many other features. That makes NoSQL sound like a big basket that can be stuffed with anything. Although the NoSQL movement does not bring fundamental technological changes to distributed data processing, it still leads to extensive research and practice on protocols and algorithms. It is through these attempts to gradually summarize some effective database construction methods. In this article, I will focus on the NoSQL database distributed special ...

The scalability of the system is the main reason for promoting the development of NoSQL movement, including distributed system coordination, failover, resource management and many other features. That makes NoSQL sound like a big basket that can be stuffed with anything. Although the NoSQL movement does not bring fundamental technological changes to distributed data processing, it still leads to extensive research and practice on protocols and algorithms. It is through these attempts to gradually summarize some effective database construction methods. In this article, I will focus on the distributed features of the NoSQL database ...

Absrtact: Paytm was invested by Alibaba $575 million, valued at $2 billion Paytm by Alibaba Group and its financial services subsidiary Ant Micro Financial Services group to invest about 575 million U.S. dollars. It is understood that after the completion of the transaction, Alibaba and Ant finance will hold one, Paytm Alibaba 575 million dollar investment, the valuation of more than 2 billion U.S. dollars Paytm by the Alibaba Group and its financial services subsidiary Ant Micro Financial Services group to invest about 575 million U.S. dollars. It is understood that after the completion of the transaction, Alibaba and ...

Research and Development Weekly: API dead, API forever! Published in 2013-03-15 13:18| Times Read | SOURCE csdn| 0 Reviews | Author She Bamboo Research and Development weekly Apigithub open source programming language Abstract: We carefully prepared for you the CSDN Research and Development Channel One week the most exciting technical hotspot, readers! Highlights of the week: Former Google senior researcher Zhao returned to venture sharing computer vision/pattern recognition experience; TIOBE March 2013 programming language rankings, Java, C ...

With the development of cloud computing technology, PAAs (platform service) is becoming more and more popular with developers, and PAAs suppliers are springing up. PAAs actually refers to the platform of Software development as a service and provides to the user. The user or enterprise can quickly develop the applications and products they need based on the PAAs platform. At the same time, the application of PAAs platform development can better build enterprise application based on SOA architecture. PAAs as a complete development service, providing from development tools, middleware, to database software developers to build applications ...

In today's technology world, big Data is a popular it buzzword. To mitigate the complexity of processing large amounts of data, Apache developed a reliable, scalable, distributed computing framework for hadoop--. Hadoop is especially good for large data processing tasks, and it can leverage its distributed file systems, reliably and cheaply, to replicate data blocks to nodes in the cluster, enabling data to be processed on the local machine. Anoop Kumar explains the techniques needed to handle large data using Hadoop in 10 ways. For from HD ...

Using Redis to develop applications is a pleasant process, but as with other technologies, you need to remember a few things as well, based on Redis application design. Before, you might have a chest of the whole pattern of relational database development, and REDIS application development has many similarities, but you have to keep in mind that the following two points--redis is a memory database, and it is single-threaded. Therefore, when using Redis, you need to pay attention to the following points: 1. Master all key databases stored in Redis ...

In today's technology world, big Data is a popular it buzzword. To mitigate the complexity of processing large amounts of data, Apache developed a reliable, scalable, distributed computing framework for hadoop--. Hadoop is especially good for large data processing tasks, and it can leverage its distributed file systems, reliably and cheaply, to replicate data blocks to nodes in the cluster, enabling data to be processed on the local machine. 　　Anoop Kumar explains the techniques needed to handle large data using Hadoop in 10 ways. For the ...