Database Dictionary Example

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Summarization of database encryption technology

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 ...

Database server Security

The database server is actually the foundation of every electronic transaction, financial and enterprise resource Planning (ERP) system, and it often includes sensitive information from business partners and customers. Although the data integrity and security of these systems are important, the level of security checks taken against the database is not as high as the security measures of the operating system and the network. Many factors can disrupt data integrity and lead to illegal access, including complexity, poor password security, misconfigured, undetected system backdoor, and mandatory routine use of adaptive database security methods ...

Deep understanding of Database Logminer

Logminer is an actual, useful analysis tool that Oracle has provided since 8i, which makes it easy to obtain specific content in Oracle Redo log files (archived log files), Logminer analysis tools are actually made up of a set of PL   SQL package and a number of dynamic views that can be used to analyze online logs and archive logs to obtain a database of past detailed, specific operations, very useful.   Why do you use Logminer? Mainly for the following reasons: When the database occurs ...

Deep understanding of Database Logminer

Logminer is an actual, useful analysis tool that Oracle has provided since 8i, which makes it easy to obtain specific content in Oracle Redo log files (archived log files), Logminer analysis tools are actually made up of a set of PL SQL package and a number of dynamic views that can be used to analyze online logs and archive logs to obtain a database of past detailed, specific operations, very useful. Why do you use Logminer? Mainly for the following reasons: When the database has been mistakenly operated, need not be completed ...

23 considerations for using MySQL database

Use MySQL, security issues can not fail to pay attention. The following are 23 tips for MySQL tips: 1. If the client-server connection needs to cross and pass an untrusted network, then you need to use an SSH tunnel to encrypt the connection's traffic. 2. Set password statement to modify the user's password, three steps, first "mysql-u root" landing database system, and then "mysql> update mysql.user set password = passwor ...

mysql database you need to pay special attention to the 23 items

Use MySQL, security issues can not fail to pay attention. Here are 23 things to note about MySQL prompts: 1. If the client-server connection needs to cross and pass an untrusted network, then you need to use an SSH tunnel to encrypt the connection's traffic. 2. Set password statement to modify the user's password, three steps, first "mysql-u root" landing database system, and then "mysql> update mysql.user set password = pas ...

Non-relational distributed database: HBase

HBase is a distributed, column-oriented, open source database based on Google's article "Bigtable: A Distributed Storage System for Structured Data" by Fay Chang. Just as Bigtable takes advantage of the distributed data storage provided by Google's File System, HBase provides Bigtable-like capabilities over Hadoop. HBase Implements Bigtable Papers on Columns ...

How the novice should prevent the database from being stolen

Strictly speaking, a database is a warehouse that organizes, stores, and manages data according to data structures. In the daily work of economic management, it is often necessary to put some relevant data into such "warehouse" and deal with it according to the need of management. For example, the personnel departments of enterprises or institutions often have to put the basic situation of the staff of the Unit (employee number, name, age, sex, place of origin, salary, resume, etc.) in the table, this table can be considered as a database. &http://www.aliyun.com/zixun/aggreg ...

Analysis of the algorithm of Baidu segmentation

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host Technology Hall query processing and Word segmentation technology with the rise of the search economy, People are beginning to pay more attention to the performance, technology and daily traffic of the world's major search engines. As an enterprise, will be based on the popularity of search engines and daily traffic to choose whether to put ads and so on, as ordinary netizens, according to search engine performance and technology to choose their favorite ...

What is the working process of the search engine

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology lobby search engine work process is very complex, we simply introduced the search engine is how to achieve the page rank.   The introduction here is relative to the real search engine technology is only fur, but for SEO personnel is enough to use.   The search engine's work can be divided into three phases: 1 crawl and crawl – search engine spiders follow links to access Web pages, get page HTML code into the database. 2 preprocessing-indexing program for ...

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