Introduction to timestamp basic knowledge
Variant of the timestamp1,timestamp DEFAULT current_timestamp on UPDATE current_timestamp refreshes this data column when new records are created and existing records are modified
2,timestamp default
I'm going to install MySQL in Windows Server 2008 R2 today, but I always find ODBC connectors installed incorrectly, whether I use MySQL's overall installation package or a separate ODBC connector installation file!!
Finally the internet search for
The following article will talk about windows2000/xp/2003 (not recommended to build PHP environment under Windows 98) under the configuration of the PHP environment, the server selected Apache 2.0.54, the database selected MySQL 4.1.14
The difference between Mycat and SHARDING-JDBC
1) Mycat is a third-party application of middleware, SHARDING-JDBC is a jar package
2) You do not need to change the code when using Mycat, and you need to modify the code when using SHARDING-JDBC
Mycat
WordPress is the main platform for editing and publishing Web content. In this tutorial, I'll step through how to use kubernetes to build a high availability (HA) WordPress deployment.WordPress consists of two main components: a wordpress PHP server
A friend sent a message, said a system application log in when prompted to connect timeout, let help handle it.Ask him if the application and the database are normal, reply that the database seems to have no problem, but the application log is
Started to use the ABP framework to build the company's new projects, although everything is not set, but the soldiers did not move, fodder first, I will try the whole process, to better to win the opportunity.This technology selection: ABP (ASP.
There is a 1251 error when using Navicat to connect to the database, the workaround.1. First open the Mysql.exe, then enter the password (Mysql.exe can search in the installation location)2. Enter alter USER ' root ' @ ' localhost ' identified with
Environment construction1, to Apache download SOLR, Address: http://mirrors.hust.edu.cn/apache/lucene/solr/2. Unzip to a directory3. CD into D:\Solr\solr-4.10.3\example4. Execute the server by "Java-jar Startup.jar" SOLR will automatically run on
1. First enter "service mysqld status" To view the current MySQL service status, showing that the MYSQLD service is running.650) this.width=650, "src=" Http://filesimg.111cn.net/2017/07/04/2017070415091576.png "alt=" in detail on Linux (CentOS)
Original: http://my.oschina.net/leejun2005/blog/343353Catalogue [-]
1. Problem: MySQL encountered some Chinese insert exception
2, Reason: This UTF8 non-UTF8
3. Solutions
3.1 Upgrading the MySQL version and upgrading the UTF8
Software downloadCurrently, neitherApache nor PHP has the official 64-bit version. Apache 64-bit:Http://files.cnblogs.com/liangjie/httpd-2.2.19-win64.rarPHP 64-bit:http://files.cnblogs.com/liangjie/php-5.2.5
MySQL itself provides command line export tool mysqldump and MySQL source Import command for SQL data import and export work, through the MySQL command line export tool mysqldump command to export MySQL data into text Format (TXT) SQL file, The
Installing the ODBC driver for MySQLSince MySQL's own installer does not contain ODBC drivers, PowerDesigner is not able to connect to MySQL. You need to install the MyODBC development version 3.51来 access Mysql.myodbc-3.51.11-1-win.msi as
According to the phonetic sorting of Chinese characters, the comparison is more in the sort of the name, according to the phonetic Alphabet of the surname, from A to Z sort;If the name of the field is stored in the GBK character set, that would be
Linux under Installation configuration mysql+apache+php+wordpress the Detailed notesLinux under the LMAP environment, it took me several days of time. has not been configured before, the installation of online information is confusing, plus I use
1. Database Transaction ACID Properties4 Features of database transactions:Atomicity (Atomic): operations in a transaction either succeed or fail;Consistency (consistency): After a transactional operation, the state of the database and the business
MySQL is a powerful open source relational database management system (RDBMS). It was posted on 1995 (20 ago). It uses Structured Query Language (SQL), which may be the most popular choice in database content management. The latest MySQL version is 5
MySQL master-slave replication principle and architecture, mysql master-slave architecture1 copy Overview
The built-in replication function of Mysql is the basis for building large and high-performance applications. This distribution mechanism
The MariaDB database management system is a branch of MySQL. It is mainly maintained by the open-source community and licensed by GPL. One of the reasons for developing this branch is that Oracle has the potential risk of shutting down the source of
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