Mongodb Add New Field

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Discard relational database PHP programmers should know five things about MongoDB

"51CTO exclusive feature" 2010 should be remembered, because the SQL will die in the year. This year's relational database is on the go, and this year developers find that they don't need long, laborious construction columns or tables to store data. 2010 will be the starting year for a document database. Although the momentum has been going on for years, now is the age when more and more extensive document databases appear. From cloud-based Amazon to Google, a number of open-source tools, along with the birth of Couchdb and MongoDB. So what ...

PHP programmers should understand five things MongoDB

2010 should be remembered because SQL will die this year. This year, the relational database is on the verge of falling, and this year developers found they no longer needed long, laborious columns or tables to store data. 2010 will be the starting year for document databases. Although this momentum has lasted for many years, it is now the era of more and broader document-based databases. From cloud-based Amazon to Google, a large number of open source tools, and the ensuing CouchDB and MongoDB. So what is MongoD ...

Talking about the three-layer operation of MongoDB

NoSQL Recent momentum is good, http://www.aliyun.com/zixun/aggregation/13461.html ">mongodb is one of the Jiao jiao, oneself learn nosql when also reference a lot of information, The final decision to start from the MongoDB, the most important reason has two: 1 oneself is a simple amateur, all problems I think whether there is a simple way to solve, rather stop to think a lot of time, also do not want to use stupid method to do immediately, and Mong ...

Discussion on NoSQL database

With the rise of internet web2.0 websites, the relational database has become a very hot new field, the development of the non relational database products is very rapid.   But the traditional relational database in dealing with web2.0 website, especially the super large-scale and high concurrent SNS type web2.0 pure dynamic website already appeared to be powerless, has exposed many insurmountable problems, for example: 1, high configured--to the database higher concurrent reads and writes the demand WEB2.0 website to be based on user personalized information to generate real-time dynamic ...

Domestic SaaS field Pioneer Enterprise ProcessOn CTO share genes behind the story

The "SaaS Pioneer" series continues to present you as a pioneer in the domestic SaaS sector, and today's protagonist, Processon,processon, is a vertical mapping tool and community where users can not only feel a very powerful and useful professional mapping tool, can also easily find their own knowledge resources, inadvertently, may also find a lot of vertical areas of "Daniel" in the sharing of their work. In fact, ProcessOn is to do a cutting-edge, efficient mapping tool, of course, can also be simply understood as "cloud computing era, Microsoft V ...

Implementation of millions real-time message push service in Worktile

In the use of Team collaboration tool Worktile, you will notice whether the message is in the upper-right corner, drag the task in the Task panel, and the user's online status is refreshed in real time. Worktile in the push service is based on the XMPP protocol, Erlang language implementation of the Ejabberd, and on its source code based on the combination of our business, the source code has been modified to fit our own needs. In addition, based on the AMQP protocol can also be used as a real-time message to push a choice, kick the net is to use rabbitmq+ ...

Moved Visio, Xmind and other professional mapping tools to the cloud

The "SaaS Pioneer" series continues to present you as a pioneer in the domestic SaaS sector, and today's protagonist, Processon,processon, is a vertical mapping tool and community where users can not only feel a very powerful and useful professional mapping tool, can also easily find their own knowledge resources, inadvertently, may also find a lot of vertical areas of "Daniel" in the sharing of their work. In fact, ProcessOn is to do a cutting-edge, efficient mapping tool, of course, can also be simply understood as "cloud computing era, Microsoft V ...

10 Big data experts who deserve to be focused on Twitter

On the face of it, looking for the wisdom of big data on Twitter seems like an ironic suggestion.   In fact, most ordinary consumers and business users use Twitter as a platform for data generation, and the information provided will be used as a source of analysis rather than as a guide to analyzing the solution. Twitter does, however, carry a huge amount of valuable data expertise--provided we know where to find them. Like other social platforms, Twitter is sometimes as noisy as it has no real value. If you add "large number ...

Smash bubble talk about development, inventory OpenStack Business Eco-circle!

"Editor's note" OpenStack Paris summit just ended, some participants feel is: the manufacturers look at each other, not many users. Also some people are asking: OpenStack in the end rely on not reliable, have got the case of shot? In this article, Unitedstack founder and CEO Chenghui in the Paris summit, the OpenStack Ecological circle of commercial companies in the inventory. Chenghui said: "OpenStack has been too high expectations of the peak, is experiencing a bubble in the bottom of the valley, for startups, this is the hardest time, this is the most ...

Hadoop Serialization System

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the.   Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...

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