B Tree Database

BPS is a set of pointer-set torsion b-tree, which can speed up to the fastest and reduce memory usage and maintenance order based on a hash table collection. This collection introduces a new variety of b-tree with strong search and http://www.aliyun.com/zixun/aggregation/17204.html "> Editing capabilities." Compared with Unordered_set, the collection is only 30% slower, but can reduce memory usage by 3 times times. Compared with order ...

BPS is a set of pointer-set torsion b-tree, which can speed up to the fastest and reduce memory usage and maintenance order based on a hash table collection. This collection introduces a new variety of b-tree with strong search and http://www.aliyun.com/zixun/aggregation/17204.html "> Editing capabilities." Compared with Unordered_set, the collection is only 30% slower, but can reduce memory usage by 3 times times. Compared with Orde ...

After more than eight years of practice, from Taobao's collection business to today to support all of Alipay's core business, and in the annual "Double Eleven Singles Day" continue to create a world record for the transaction database peak processing capacity.

NoSQL systems generally advertise a feature that is good performance and then why? relational database has developed for so many years, various optimization work has been done very deep, nosql system is generally absorbing relational database technology, and then, in the end what is the constraints on the performance of relational database? We look at this problem from the perspective of http://www.aliyun.com/zixun/aggregation/9344.html "> System design." 1, index support. Relational data ...

A good database product is not equal to have a good application system, if can not design a reasonable database model, not only will increase the client and Server section program programming and maintenance of the difficulty, and will affect the actual performance of the system. Generally speaking, in an MIS system analysis, design, test and trial run stage, because the data quantity is small, designers and testers often only notice the realization of the function, but it is difficult to notice the weak performance, until the system put into actual operation for some time, only to find that the performance of the system is decreasing, At this point to consider improving the performance of the system will cost more ...

Oracle as the world's largest relational database provider, in its product chain, also joined the NoSQL database, and this new database name is very domineering, called NoSQL db. Oracle's NoSQL Database, one of the components of the Big Data appliance, released on the Oracle Global Encyclopedia on October 4, is a component of the Big Data appliance, an integrated Hadoop, NoSQL Database, O ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall in the consideration of a website if the host million or tens of millions of PV, We tend to think in two directions instinctively: static and distributed. Of course, for Sina and other portal types of Web sites, static + read and write separation and distribution, can solve most of the problems. But we are facing more, may be large data + high and ...

MongoDB is a database based on distributed file storage. Written by the C + + language. Designed to provide scalable, high-performance data storage solutions for Web applications. Products between relational and non relational databases are among the most functionally rich and most like relational databases in relational databases. The data structure he supports is very loose and is a JSON-like Bjson format, so you can store more complex data types. MONGO the most characteristic is that he supports the query language is very powerful, its syntax is somewhat similar to the object-oriented query language, can almost actually ...

Orient DB is a scalable document database that supports ACID transaction processing. Implemented using Java 5. Orientdb is a deeply scalable document-graph DBMS with the flexibility of the Document databases and the power to manage links of T He Graph Databas ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall stationmaster Good, the website operation has always been the enterprise, the website headache One thing, then the following from the successful case which has changed together, comes to everybody to reveal the website planning entire process, hoped to have the help to everybody! Content: Website Planning Process 1, to determine the location of the site 1.1, to determine the purpose of site positioning A, to determine the location of the site can be conducive to the operation of the Web site development direction of the control B, all the planning around the site will be ...