nosql column database

Advantages and disadvantages of relational databaseAdvantages: Can do transaction processing, so as to ensure the consistency of data; Can be a join, such as multi-table query; Because of SQL standardization, the cost of data updates is small (the same fields are basically only one place). Disadvantages: The write processing of large amount of data is not easy; If the table data volume is too large, it is not easy to do index or table structure update; When the field is

Although the NoSQL movement does not bring fundamental technological changes to distributed data processing, it still leads to a deluge of research and practice on protocols and algorithms. In this article, I will make some systematic descriptions of the distributed features of the NoSQL database. The scalability of the system is the main reason to drive the dev

This article by Bole Online-Tang Yuhua translation from Kristóf Kovács. Welcome to the technical translation team. Please refer to the requirements at the end of this article for reprint. Guide: Kristóf Kovács is a software architect and consultant who recently published an article comparing various types of NoSQL databases. Although SQL database is a very useful tool, the monopoly is about to be broken aft

Redis database of NoSQL Database: Redis introduction and installation and deployment, nosqlredisZookeeper NoSQL (NoSQL = Not Only SQL) refers to non-relational databases. With the rise of Internet Web websites, traditional relational databases are dealing with Web websites,

This article has translated three articles from 35 + UseCasesForChoosingYourNextNoSQLDatabase: WhatTheHeckAreYouActuallyUsingNoSQLFor ?. 101QuestionsToAskWhenConsideringANoSQLDatabase. What NoSQL This article is translated from 35 + Use Cases For Choosing Your Next NoSQL Database There are three previous articles What The Heck Are You Actually Using

1. Add a new column to the existing table in the database Statement:altertable name add column name type Example:alter MyUser ADD Userdesc VARCHAR(+);2. Name the rename in the existing tables in the database Statement:altertablecolumn to new columns name; Example:altertablecolumn to Pk_group;3. Modi

Krist ófskács, a software architect and consultant who once worked in a number of major companies, blogs on mainstream NoSQL databases (Cassandra, Mongodb, CouchDB, Redis, Riak, Membase, Neo4j, and HBase)) A comprehensive comparison was conducted. Although SQL database is a very useful tool, after 15 years of outstanding performance, the monopoly will be broken. This is only a matter of time: I was forced t

technologies available on the market and ultimately determine the one that suits our needs. For the requirements that we have just mentioned-documenting and processing the large amounts of data generated automatically by the system-we have many options in the initial stages of technology selection: Key-value databases such as redis,document-based databases, such as MongoDB, column-based databases, such as Cassandra. And when implementing certain func

Tags: nosql NoSQL Basic Concepts and MongoDB MongoDB Basic Application MongoDB Index and copy set The concept of database sharding and the realization of MongoDB sharding I. The basic concept of NoSQLNoSQL (not just SQL), is a technical genre, non-relational

Tags: style blog http color io os ar using JavaGuide: Kristóf Kovács is a software architect and consultant who recently published an article comparing various types of NoSQL databases. Although SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational databases, but eventually found to be unable to adapt t

KristfKovcs, a software architect and consultant who once worked in a number of major companies, blogs on mainstream NoSQL databases (Cassandra, Mongodb, CouchDB, Redis, Riak, Membase, Neo4j, and HBase) A comprehensive comparison was conducted. Although SQL database is very useful NoSQL Krist ófskács, a software architect and consultant who once worked in a num

Comparison and Analysis of eight common NoSQL Database Systems Krist óf kolács is a software architect and consultant who recently published an article comparing various NoSQL databases. Although SQL database is a very useful tool, after 15 years of outstanding performance, the monopoly will be broken. This is only a m

NoSQL systems generally advertise a feature, that is, good performance. Why? After so many years of development in relational databases, various optimizations have been done very deeply. NoSQL systems generally use relational database technology. What factors have bound the performance of relational databases? We can look at this problem from the perspective of s

HadoopHBaseCassandra is a column-based database with scalability, row-based storage, no master node architecture, linear correlation between performance and data volume, and no single node failure, multiple Data Centers read and write high-performance GooglesBigtable C ++ Implementation of Hypertable. AccumuloAccumulo is based on BigTable and is built on Hadoop, Zookeeper, The Hadoop/HBase Cassandra

Cassandra may not be interested in being a nosql, but it's fascinating to do certain jobs, as Netflix and Instagram two companies must know.Over the years, NoSQL participants, such as MongoDB, have gotten a lot of attention, but the halo of Apache Cassandra has faded, and Facebook, which created Cassandra, has given up on it, The community of Cassandra seems to be out of date soon. But Cassandra's fortunes

NoSQL (not-only SQL) non-relational databasecomparison between relational database and non-relational database :Common relational databases: MySQL, Oracle, SQL ServerA relational database involves a federated query (join), which slows down the query when the volume of data is largeNo relationship between

scenariosEvent recordsContent Management System and blog platformWebsite analysis and real-time analysisE-commerce applications(A flexible mode is required to establish a data model at a low cost) Unsuitable scenariosComplex queries that contain multiple operationsQuery continuously changing aggregate structures Column Family database ProductHBaseAmazon SimpleDBCassdndraHypertableBigTable (google

Article Source: http://article.yeeyan.org/view/271351/239915Although SQL database is a very useful tool, the monopoly is about to be broken after 15 years of a single show. This is only a matter of time: forced to use relational databases, but eventually found to be unable to adapt to the needs of the numerous.But the difference between NoSQL databases is far more than the differences between two SQL databa

Introduction and use of the nosql database CodernityDB developed in Python only, nosqlcodernitydb Look at this logo. It's a bit python-like. The database codernityDB introduced this time is developed in python only. I used the tinyDB local database and an api service. At first, I thought the speed was a little poor. T