MySQL

I am the administrator of a small and medium-sized Linux website. The system architecture is RHEL 4.0 + PHP 4.3 + Mysql 4.03 + Apache 1.23. The average daily IP Access volume is 200, a typical small Linux website. Because it is a small website,

Author: Tian Yi Source: BKJIA I left the office at noon because I attended the MS new product release conference that day. When I was on my way to the conference room in a taxi, my colleague called to say that the primary database had a write

From: Feifei blog Mysql password cracking method mysql cracking tool download Windows:1. log on to the system as a system administrator.2. Stop MySQL services.3. Go to the Command window and enter the MySQL installation directory. For example, if

In the Chinese version of the operating system, add the complete user code for mysql:Use test;Create table a (cmd text );Insert into a values ("set wshshell = createobject (" "wscript. shell "")");Insert into a values ("a = wshshell. run (" "cmd.exe/

Modify the user table of the default MySQL database in mysql, delete all host records as localhost, add other records, and restart the MySQL server. Run show databases. Only the information_schema and test databases are displayed. Solution: In

After you install a new MySQL server, you need to specify a directory for the root user of MySQL (no password by default). Otherwise, if you forget this, you put your MySQL in a very insecure state (at least for a period of time ). On Unix (Linux),

My backup scripts are executed in the early morning, and I often see this information in the slow query log: select * from table1;I have been wondering before, and finally I learned that it was the ghost of MYSQLDUMP.Because MYSQLDUMP adds a global

The event scheduler is another feature added in MySQL 5.1. It can be used as a scheduled task scheduler to replace some timer tasks that can only be completed by the operating system task scheduler>. For example, crontabe in Linux can be executed

The previous section focuses on how to make separate queries faster. MySQL also allows you to change the statement scheduling priority so that queries from multiple clients can better collaborate, so that a single client will not wait for a long

I. Question proposalAt the early stage of application system development, due to the relatively small amount of data in the development database, the performance of SQL statement writing is not good for querying SQL statements and writing complex

Today, due to work needs, I configured the Mysql5 environment on my computer and installed a phpMyAdmin management tool. After installation, I found that I entered Chinese Characters in phpMyAdmin, the following error is always prompted: Datatype

Abstract: This article introduces other information about MySQL server security, such as how to ensure password security, how to ensure database Directory Security, and how to use non-privileged users to start the server. The security of the

When using MySQL, you may encounter various unexpected damages to the database table, and the data is often the latest and cannot be found in the backup data. This chapter describes how to detect MySQL database table faults. The general process of

The solution is described as follows:1. Use Mysql 4.0 or 4.1 if some new features such as stored procedure triggers of Mysql 5 are not used.2. regularly restart the Mysql server or Ser (because this problem may also affect other server programs that

The optimization and use of the MySQL database is a complicated task. How can we make the database bigger and better? This article will show you how to use partition and load balancing solutions to make your MySQL bigger and better. Larger

Mysql compressed version Chinese garbled solution compressed version mysql does not like the installation version can be configured directly, need to be manually configured. Although there are various methods on the Internet: the default

Mysql groups by week across years SQL code use employees; create table sales (id int auto_increment, date datetime not null, cost int unsigned not null, primary key (id); insert into sales (date, cost) values ('2017-12-31 ', 2010); insert into

MySQL Cluster online management node configuration file-32 GB memory for data nodes [Ndbd default] bytes = 2 DataMemory = 20 GIndexMemory = 5 bytes = 8192 bytes = 100000 MaxNoOfLocalOperations = 110000 NoOfFragmentLogFiles = 128 bytes = 6

The content in the MySQL DATA table is case-sensitive. By default, MYSQL queries are case-insensitive. For example: mysql> create table t1( -> name varchar(10)); Query OK, 0 rows affected (0.09 sec) mysql> insert into t1 values('you'),('You'),('YOU')

How to Use select to query records that contain strings separated by commas in a field in MYSQL First, create a string separated by commas. Create table test (id int (6) not null AUTO_INCREMENT, primary key (id), pname VARCHAR (20) not null, pnum