nosql databases vs relational databases

[TechTarget Chinese original] Q: I am studying various types of database architectures. Can you tell me the security of non-SQL databases (NoSQL) and mainstream commercial relational databases? For a database that stores information securely, it must provide confidentiality, integrity, and availability (CIA ). When ne

Although the 09 appeared a more radical article "Relational database is dead", but we all know that the relational database is actually alive and well, you can not use the relational database. But it also illustrates the fact that the relational database has a bottleneck when it comes to processing WEB2.0 data.So are w

. Delete secondary indexes of a table, rewrite the query so that it only uses the primary key index; 7. Database sharding; this method is complex and costly to maintain; and it is costly to re-split when the data size increases again, limited secondary scalability; Ii. RDBMS and NoSQLIn actual use, as long as the architecture is proper, relational databases can fully serve various levels of data storage app

What is the comparison between nosql and relational databases? Advantages: 1) Cost: nosql databases are simple and easy to deploy. They are basically open-source software and do not need to be purchased and used at the same cost as Oracle, which is cheaper than

Web applications can not be separated from the database, there are a wide variety of databases available for developers to choose from, such as SQL, NoSQL, key value, graph database and so on. The popularity of different databases among developers is benevolent see, but by counting the public cloud platforms like Amazon, it's easy to see that there is a big diffe

may encounter. In fact, mongodb installation is relatively simple. With the rise of Internet Web websites, traditional relational databases are insufficient in Hong Kong Space. High-concurrency database read/write requirements High concurrent database load, website space, tens of thousands of read/write requests per second, disk I/O bottleneck High-efficiency access to massive data Efficient query of hundr

With more than 10 years of architecture and development experience in C ++ and JavaJEE, MichaelKopp specializes in the architecture and performance of large-scale product deployment. Traditional enterprise database providers often propose that NoSQL lacks professional monitoring and management tools. Their argument is that enterprise applications need to fine tune and monitor Databases Michael Kopp has more

Michael Kopp has more than 10 years of architecture and development experience in C ++ and Java/Jee. He is now a compuware technology strategist who specializes in the architecture and performance of large-scale product deployment. The following is a translation: Traditional enterprise database vendors often propose that nosql lacks professional monitoring and management tools. Their arguments are: enterprise applicationsProgramThe database needs

operations, so very slow, and the associated query is also very complex, resulting in low efficiency, often query business does not go index, query speed is very slow, mainly because of the complexity of the performance of the lower Summary Choosing a nosql requires the following 2 prerequisites:1. No acid required2. No correlation query required If you need the above two functions, you cannot select NoSQL

of NoSQL slowly deviated from the original intention, we want is not "no SQL", but "no relational", which is what we now often say the non-relational database. In early 2009, Johan Oskarsson held a discussion about open-source distributed databases, and Eric Evans again introduced the term "

OSX does not support C, C ++, Cobol, Java, Perl, PHP, Python, and other programming languages. In addition to the Top 10, there are many well-known databases, such as CouchDB (21), Neo4j (22), and Riak (30. At the same time, we also believe that with the emergence of a variety of new databases, the competition will become increasingly fierce. Top 10 students with SQL statement query scores Selet top 10 * f

databases, and Eric Evans again introduced the term "NoSQL" to refer to data storage systems that are non-relational, distributed, and generally not guaranteed to adhere to the acid principle. Eric Evans uses the term nosql, not because of the literal "no SQL" meaning, he just feels that a lot of classic

according to its required paradigm, and the tables in the relational database are all stored in a formatted data structure. The composition of each tuple field is the same, even if not all of the fields are required for each tuple, but the database assigns all the fields to each tuple, which makes it easy to link between the banner tables, but from another point of view it is also a factor in relational da

Label:The current relational data on the market are: Oracle, DB2, Microsoft SQL Server, Microsoft Access, MySQL, and more.Non-relational databases are: Nosql,cloudantNon-relational databases are still