Components Of A Database Management Systems

The necessity of database encryption large database management system platform is typically Windows NT and Unix, these operating system security level is usually C1, C2 level. They have user registration, user identification, Arbitrary access control (DAC), audit and other security functions. Although the DBMS on the basis of the OS added a number of security measures, such as access control based on permissions, but the OS and DBMS on the database file itself is still lack of effective protection measures, experienced online hackers will "bypass", directly using the OS tools to steal or tamper with the database files ...

The development of the big data industry has been included in the National Development plan, and in 2014, "Big Data" first appeared in this year's "Government work Report". 　　"Government work Report" pointed out that to set up new industries entrepreneurial innovation platform, in large data and other aspects of overtaking advanced, leading the future industrial development. Large data construction is inseparable from high-performance database software, unfortunately, the current database market in China, Oracle [micro-BO], ibm[Micro-BO] as the representative of the foreign database software is still in the dominant position, a lot of database software for the government procurement is still accustomed to using foreign products, ...

The scalability of the system is the main reason for promoting the development of NoSQL movement, including distributed system coordination, failover, resource management and many other features. That makes NoSQL sound like a big basket that can be stuffed with anything. Although the NoSQL movement does not bring fundamental technological changes to distributed data processing, it still leads to extensive research and practice on protocols and algorithms. It is through these attempts to gradually summarize some effective database construction methods. In this article, I will focus on the NoSQL database distributed special ...

The scalability of the system is the main reason for promoting the development of NoSQL movement, including distributed system coordination, failover, resource management and many other features. That makes NoSQL sound like a big basket that can be stuffed with anything. Although the NoSQL movement does not bring fundamental technological changes to distributed data processing, it still leads to extensive research and practice on protocols and algorithms. It is through these attempts to gradually summarize some effective database construction methods. In this article, I will focus on the distributed features of the NoSQL database ...

The Hadoop system runs on a compute cluster of commodity business servers that provide large-scale parallel computing resources while providing large-scale distributed data storage resources. On the big data processing software system, with the open-source development of the Apache Hadoop system, based on the original basic subsystem including HDFS, MapReduce and HBase, the Hadoop platform has evolved into a complete large-scale Data Processing Ecosystem. Figure 1-15 shows the Ha ...

1. With the rapid development of computer technology, the application of database is very extensive, in-depth to various fields, but with the resulting data security problems. The security of large amount of data in the database of various application systems, the problem of stealing and tamper-proof of sensitive data are paid more and more attention by people. The database system as the information gathers the collective, is the computer Information System core component, its security is vital, relates to the enterprise rise and fall, success or failure. Therefore, how to effectively ensure the security of the database system to achieve data confidentiality, integrity and effectiveness, has become the industry to explore ...

Many business owners with only more than 10 to dozens of employees ask if they don't want to spend thousands or even million to buy a database software and ask if there are any free database software available. In fact, there are a lot of small business owners in this type of enterprise, their company needs a small database software to statistics the company's some product data and the information of the storage, the amount of data is really small. As I've seen before, some small businesses use office-brought access small databases, but still feel less convenient. Here, the editor recommends several open source databases for small business use ...

I-doit is a CMDB (configuration management database) based on ITIL technology. It can document IT systems and their changes, define contingency scenarios for change, and display important information, and help ensure a stable and efficient it network operation. Because of its modular architecture, it can deploy functional add-on components and even develop extensions. CMDB definition CMDB--configuration Management database configuration management databases, storage and management enterprise http://www.al ...

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp;1, overview cloud, hot. From the low-level IP communications, IT technology to high-level information applications and content, have a "cloud" figure. Cloud computing is a new IT infrastructure and internet-based business model to meet the needs of users for low-cost, efficient, resilient mass data storage, parallel processing, software and information services. The advent of cloud computing, ...

Building a fully service-oriented system has always been the goal pursued by Twitter, and from the previous article, we shared Twitter to cope with the overall 143,000 TPS peak system overview, but the details of the various service components are not involved. Fortunately, the company recently disclosed Manhattan's independently developed database system, which delivers in-service features while delivering features such as high availability and availability. The following is translation: As Twitter grows into a global user exchange ...