Data tampering is to modify, add or delete computer network data, resulting in data destruction. The database data was attacked first to see if it was deleted or tampered with? Is there any backup data that can be restored and reinforced? This article comes from the database technical expert Zhang, mainly describes the MySQL attack tampering data, utilizes the Binlog from the library backup and the main library to carry on the incomplete recovery. The following is the author's original: First, the discovery of the problem today is 2014-09-26, development early in the morning that the database was attacked. The article in the database of an article table ...
Naresh Kumar is a software engineer and enthusiastic blogger, passionate and interested in programming and new things. Recently, Naresh wrote a blog, the open source world's two most common database MySQL and PostgreSQL characteristics of the detailed analysis and comparison. If you're going to choose a free, open source database for your project, you may be hesitant between MySQL and PostgreSQL. MySQL and PostgreSQL are free, open source, powerful, and feature-rich databases ...
MySQL large table repeated fields should be how to find it? This is a lot of people have encountered the problem, here is to teach you a MySQL table repeated fields of inquiry, for your reference. The database has a large table, you need to find the name of the duplicate record id, in order to compare. If only to find the name of the database does not repeat the field, it is easy SELECT min (`id`),` name` FROM `t ...
One, the required installation package apache_1.3.19.tar.gz php-4.0.4.tar.gz mysql-3.23.32.tar.gz Note: The above are source code instead of RPM Package II, Software Installation 1. Install MySQL (1) Unlock the compressed package cd/usr/localtar-zvxf mysql-3.23.32.tar.gz (2) will produce mysql-3.23.32 directory to/usr/local/mys ...
In peacetime is asked the most questions about the MySQL database performance optimization issues, so recently intended to write a MySQL database performance optimization of the series of articles, I hope that the junior high level MySQL DBA and other interested in MySQL performance of friends to help. Databases are IO-intensive applications whose primary responsibility is data management and storage. And we know that the time to read a database from memory is the microsecond level, and reading an IO from a common hard disk is at the millisecond level, both ...
The following article mainly introduces Mysql case-sensitive solution to some of the problems, this article is through Mysql sensitivity to its detailed study, the following is the article on the specific content of a detailed introduction, hope you browse after Mysql case-related issues have a better understanding. Database and Table Names In MySQL, databases and tables correspond to directories and files in those directories. Therefore, the inherent operating system sensitivity determines the case sensitivity of the database and table names. This means that the database and table names on Unix are ...
In the development of friends especially and MySQL have contact friends will encounter sometimes MySQL query is very slow, of course, I refer to the large amount of data millions level, not dozens of, the following we take a look at the resolution of the query slow way. -Often find developers looking up statements that are not indexed or limit n, which can have a significant impact on the database, such as a large table of tens of millions of records to scan all, or do filesort, and the database and server IO impact. This is the case above the mirrored library. And ...
If a computer manufacturer, its database holds machine and accessories product information. The table used to save the whole product information is called pc; the table used to save the parts supply information is called parts. There is a field in the pc table, used to describe the type of CPU used in this computer; there is a field in the parts table, the description of the CPU model, we can think of it as a list of all CPU models. Obviously, the CPU used by this manufacturer must be a model that exists in the supply information sheet. At this time, two tables ...
Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host Technology Hall PHP program is a script, only the client trigger will execute. And a lot of web site construction process need timing function, such as the early morning database automatic statistical data. This article is to describe the use of MySQL event scheduling Event_scheduler implementation of the timing of the blog post. With Wo ...
MySQL is an open source relational database management system, the developer for the Swedish MySQL AB company, is now part of sun company. Oracle announced the acquisition of Sun Company in 2009, so MySQL may become Oracle's products. Because of its high performance, low cost and good reliability, MySQL has become the most popular open source database and is widely used in small and medium Web sites on the Internet. As MySQL matures, it is increasingly used for more large-scale ...
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