Net Embedded Database

"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 ...

Recent discussions about http://www.aliyun.com/zixun/aggregation/22.html "> The future of the relational database have been growing, and 51cto.com has previously reported on whether the end of the relational database has arrived" and The fundamental problem analysis of relational database is widely concerned. 　　Today we introduce a new document-type database MONGO. MONGO is a high-performance, open source, modeless document database, it's in many scenarios ...

Although the "editor's note" has been available for 9 years, the popularity of Mongodb,hamsterdb is still lacking, and it has been rated as a Non-mainstream database. Hamsterdb is an open source key value type database. However, unlike other Nosql,hamsterdb, which are single-threaded and not distributed, they are designed to be more like a column store database, while also supporting acid transactions at the Read-committed isolation level. Then compare Leveldb,hamsterdb will have any advantage, here we go ...

Recently, in 2011 China Software Technology Conference, Versant database technology Vice President Robert Greene received an exclusive interview with Sadie Net reporter. In the field of data management in cloud computing, the main trend in the future is the full mobility of data, Robert Greene said in an interview. At the same time, he also revealed that for domestic developers, Versant will soon launch certification training services. It is learned that the Versant database is an advanced large-scale distributed database of the next generation, widely used in a variety of large data processing. Vers ...

Fourth Chapter online Retail payment settlement currency: Electronic money electronic money as the latest currency form, since the 1970s, its application has been more and more extensive. E-Money is the payment currency that the main parties of the network retail transaction use to complete the exchange. Without E-commerce, there would be no electronic money. Similarly, there is no electronic commerce without electronic money. [1] Electronic money overview One, the development of electronic money business at home and abroad, the development of electronic money in the late the 1990s, and has been widely concerned by the public and the official institutions.

"51CTO classic" I like MongoDB mainly because it is so simple and natural to use it in dynamic languages. So far, I've used it in two projects (Encode and SPARRW), although I'm very happy with the choice, but there are some problems I haven't noticed, and these problems have kept me scratching my scalp for hours. If you have more than one machine, and then allocate a few more machines for the database, then some problems can be solved, but my project is running on a single (virtual) server on the low flow w ...

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 ...

The March 29 news that extending the sphere of influence beyond the PC is the focus of Intel's efforts today. In an interview with Sina Science and technology, Intel Vice President and China President Yang described, now the cooperation between the parties in the industry chain is very different from the past.　　Image: Sina Technology interview Intel Vice president and China Regional President Yang Yang said that the communications industry, consumer electronics industry, and even embedded equipment manufacturing, and so on, there are a broader industrial chain of cooperation opportunities, and greater development opportunities. In the face of these may not be currently Intel's dominant areas, Yang that Intel brings the biggest ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall first look at two Tsinghua Science and Technology Park Enterprise Information Service Center survey data: 1, only 30% of the agencies have their own web site or network Service platform. 　　95% of institutional managers want to use the Internet to cut revenue for their organizations. 　　What does the huge gap between 95% and 30% illustrate? There are too few Internet tools for the organization. 2. Of these 30% net organizations, 85% found that their network investment did not play any role, only 15% of the organizations had been ...

MongoDB is a product between relational database and non relational database, and is the most powerful and relational database in the relational database. The data structure he supports is very loose and is a JSON-like Bjson format, so you can store more complex data types. The biggest feature of MONGO is that the query language he supports is very powerful, and its syntax is somewhat similar to an object-oriented query language, which can almost achieve most of the functions of a single table query like relational database, and also supports indexing data. Just released MongoDB 1 ...