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MySQL has become one of the most widely used databases in the current network, especially in Web applications, which occupy the absolute advantage of small and medium applications. It all stems from its compact, safe, efficient, open licensing and multi-platform, and, more important, the perfect combination of--php with one of the three web languages. Unfortunately, a default installation of MySQL, because the root password is empty and the program vulnerabilities caused by the overflow, so that the installation of MySQL server is a frequent target. What is more serious is that the database is often destroyed after the attack, causing disaster easily ...

Here's an excerpt of the background, followed by a record of the operations I migrated from MySQL 5.5.31 to mariadb 5.5.31 on CentOS 6.4. 　　Finally, I found a better way to migrate. 1. Background introduction MySQL is the world's most popular open source relational database. 2008, Sun acquired MySQL. Then, in 2010, Oracle bought Sun, and MySQL fell into Oracle's hands. Oracl ...

Mysql often encountered during the three failures, in this summary. 1, MySQl service can not start We use mysql process, often encounter MySQl service can not start, specific error message: Starting MySQL ERROR.The server quit without updating PID file (/ [FAILED] l / mysql /) For such error,...

Despite being caught by Oracle, the controversy on MySQL never stopped; today, MySQL is still the most popular open source database on the market. Simple, free, extensible, relatively mature and so has always been the attraction of MySQL, but it is like a rabbit in a tortoise and hare race, because of its own advantages, to slacken, slowing down their own pace, so that each competitor Have the opportunity to catch up, these killer features are no longer attractive (or even reduced to the disadvantaged). Although PostgreSQL has always been the direct competitor of MySQL, ...

As long as you master the following method, you can basically get the mysql database. First, the connection MYSQL format: mysql-h host address-u username-p user password 1, Example 1: Connect to the local MySQL: First open the DOS window and then enter the directory mysqlbin, then type the command mysql -uroot - p, after the carriage return prompts you to lose the password, if you just installed MYSQL, super user root is no password, so enter directly into MYSQL, MYS ...

Intermediary transaction SEO diagnose Taobao guest Cloud host technology Lobby database optimization is a very complex task, because it ultimately requires a good understanding of system optimization. 　　Even though the system or application system does not know much about the optimization effect is good, but if you want to optimize the effect of better, then you need to know more about it. 1, the optimization of the system to run faster the most important factor is the basic design of the database. 　　And you have to be aware of what your system is going to do, and the bottlenecks that exist. The most common system bottlenecks are as follows: ...

How to Get Better Full-Text Search Results in MySQL Many internet applications provide full-text search that allows users to locate matching records using a single word or phrase as a query item. In the background, these programs use LIKE statements in a SELECT query to perform such queries, and while this works, it is an extremely inefficient way for full-text lookups, especially when dealing with large amounts of data . mysql provides a solution to this problem based on the built-in full-text search. Here, developers ...

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 ...

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 ...

In real life, backing up the database regularly is a very important thing. 　　When we use MySQL, there is a lot of choice in database backup, and this article will show readers how to use MySQL's mysqldump to back up the database. First, the importance of data backup work, if the accidental deletion of important files or directories, then the result will be miserable. Especially when the data that is accidentally deleted involves important customers or key projects, and the data can't be recreated easily, it doesn't have to be what I say you can imagine. Unfortunately ...