benefits of nosql over sql

As we all know, relational data types have always been one of SQL's criticism. With the increasing variety of data, the conversion from various data types to relational data types has plagued most SQL database users. However, the advantages of SQL databases are undeniable. If you can have both the fish and the bear's paw-implementing nosql Data Types in the

basis of data normalization and performance assurance. But in recent years, we have produced data much faster than relational storage can meet the growth of storage capacity. The reason for this rapid increase in data is the huge number of users and the Internet of things. Users connected to the Internet are multiplying and using our apps in sync. As large numbers of mobile device data-sensing devices are connected to the Internet, the amount of data generated by the machines increases dramatic

transactions in the database (transaction) have ACID4 basic features that can be compared to trading:1,A (atomicity) atomicityEverything in the transaction is either completed or failed during execution and is rolled back.2,C (consistency) ConsistencyThe database should be in a consistent state.For example: Existing integrity constraints a+b=10, if a transaction changes A, then B must be changed3,I (isolation) IndependenceThe concurrent transactions do not affect each other.If the data to be acc

, triggers 5. MongoDB first release : 2009 Licensing mechanism : Open source whether SQL: no The most popular NoSQL database, but retains some of the SQL attributes, such as high performance on query and index large datasets, which is good for dynamic queries and index definitions to support Linux, OS X, and Windows, but the size of the database is limited to 2.5

Transferred from:http://blog.jobbole.com/86269/Although hierarchical databases are still widely used on mainframes today, relational database (RDBMS) (SQL) has captured the database market and performed quite well. The money we save doesn't go to someone else's account, and we make sure we have an exclusive seat on the plane, and we're not going to be blamed for what we didn't do, and so on. The data integrity of a relational database is due to its ad

Label:Original: SQL Server Automation Operations series--about mail notification that something (. NET Developer Benefits)Requirements Description In our production environment, in most cases, we need to have our own operation and maintenance system, including the detection of their own health status. In the event of an exception, an early warning is required, and the form of notification is generally commu

Tags: using l database to record different strong location business data real-timeDatabase classificationone, SQL database:mysqlSQL Cons:1, in many cases, timely access, is not necessary.2, a lot of things need3, consumption performance.Two, NoSQL database:redis,mongodbGave up 3 points.1, real-time consistency.2, things3, multi-table joint query.MongoDB feature 1, no data structure limitationsA, without the

SQL stored procedure definition and stored procedure benefits SQL stored procedure definition and stored procedure benefits SQL stored procedure definition and stored procedure benefitsReuse. Stored procedures can be reused to reduce the workload of database developers.(2

This article mainly describes the actual operation steps of DB2 9.7 SQL compatibility and the benefits of DB2 9.7 SQL compatibility. At the same time, this article also describes the SQL features, the following is a detailed description of the main content of the article. I hope you will have a better understanding of

: This article mainly introduces the differences between NoSQL and SQL. if you are interested in the PHP Tutorial, you can refer to it. Simply put: SQL is a structured query language for relational databases, while nosql generally refers to relational databases. SQL stateme

Tags: mariadb acl redis ora Two kinds of memory cache memory Detail1, first of all, from the database type classification, MySQL, MariaDB, SQL Server These 3 kinds belong to the relational database.NoSQL is a non-relational database and is considered a database revolutionist.Redis becomes a memory cache database, and the previous two types of databases put data on disk, so Redis is faster.See http://blog.csdn.net/allen_a/article/details/50611966Http:/

Original: SQL Server Tour--first stop the system view that brings us benefits　　Originally wanted to write something about this series, and then think of everyone as a programmer, the most used is the database, but in fact a lot like me to work in the first line of the code farm, on the SQLAll smattering, don't talk about optimization and the database of the bottom of the understanding, I also like this ...O

function is also added, but the article has been a little bit of space, the follow-up to complete it. This article about the SQL Server mail function as a discussion, the other needs of their own flexibility to implement. In fact, the job task described in this article on the detection of a few servers there is still a problem, but if more than one server, if there are several job exceptions on each server, every morning to open the mail more estimat

article has been a little bit of space, the follow-up to complete it. This article about the SQL Server mail function as a discussion, the other needs of their own flexibility to implement. In fact, the job task described in this article on the detection of a few servers there is still a problem, but if more than one server, if there are several job exceptions on each server, every morning to open the mail more estimates will make your scalp numbness

Reprint Please specify source: Jiq's technical BlogHBase Features:Recently in learning HBase. HBase is indexed based on row health, and queries are fast and in real time.However, HBase is queried based on fields other than row health. Then it can only be a full-fledged scan, which is basically unacceptable.So HBase will generally be designed for detailed application scenarios, using the real-time nature of the query based on row health to achieve real-time query of hbase data.A relational databa

SQL Server 2008 provides a comprehensive and scalable data warehouse platform that enables strong analysis with a single analysis store to meet the needs of tens of thousands of users in terabytes of data. The following are some of the benefits of data warehousing in SQL Server 2008. Data compression The amount of data in the data warehouse continues to grow as