mariadb maxscale

(virtual Tables)View is also known as the virtual table, is actually stored down the SELECT statement, the query results of the SELECT statement is displayed as a table form, but in fact can put a statement to save, and then the statement itself to do the query operation, similar to do a sub-query;MySQL is now primarily maintained by Oracle, and MySQL and mariadb are still compatible with the basic functionality, two different release routes;The diff

Tags: Star installation complete enable color top host Php-mysql httpd php emctlCentos 7 Installs these three things, usually there is a kit (LAMP), here does not talk about the installation method of the kit, only said the three-piece set of separate installation. Installation of 1.Apache and PHP (1). Install Apache, PHP #yum-y Install httpd PHP (2). Installing Apache extensions 1 #yum-y install httpd-manual mod_ssl mod_perl mod_auth_mysql (3). Installing PHP Extensions #yum-y install php-gd ph

Debian9 MySQL replaced by mariadb-server-10.1But they are similar."MySQL and mariadb differences"http://ask.chinaunix.net/question/556After the father of MySQL Widenius left Sun, he felt that relying on sun/oracle to develop MySQL is very unreliable, so decided to open another branch, the name of this branch is called MARIADB.。。。。。So for the majority of MySQL use

1. Prepare the directory where the database files are stored mariadb. Mkdir/mydatacd/mydatamkdir datachown mysql:mysql Data #如本机没有mysql用户及组需新建系统用户, group example: Groupadd-r-G 306 Mysqluseradd-r-D/ Mydata/data-u 306-g 306 MySQLDatabase files occupy a large amount of memory and are placed on logical volumes to ensure scalability. The following steps are required to configure the logical volume process, which you do not need, and go directly to the seco

upgradeActually installs newer versions of the packages you have. After updating the lists, the Package Manager knows on available updates for the software you have installed. This is what you first want to update .(Copy in Http://askubuntu.com/questions/94102/what-is-the-difference-between-apt-get-update-and-upgrade)Other words:Apt-get Update updates the version of the package that needs to be installed, but does not install or upgrade a package that is already installed.Apt-get upgrade i

Environment background: CentOS 7.2 I. Edit the/usr/lib/systemd/system/mariadb.service file and add it in the service segment 123456789101112 [service] type=simple user=mysql group=mysql user= MySQL group=mysql execstartpre= Code class= "Bash plain" >/usr/libexec/mariadb-prepare-db-dir %n #note:weset--basedirtopreventprobesthat mighttriggerselinuxalarms, #perbug #547485 #在Server段中的ExecStart出添加如下

Tags: tables password view ror run int emctl war iadReset Password after Linux MariaDB forgotten passwordMariaDB is a branch database of MySQL. The approach is the same as MySQL.Modify the MySQL configuration fileAppend the configuration entry in [MYSQLD]: [[emailprotected] ~]# vim /etc/my.cnf [[emailprotected] ~]# cat /etc/my.cnf ... [mysqld] skip-grant-tables ... 1 2 3 4 5 6 1 2 3 4 5

Practicability In operation and maintenance work, often encounter the need to kill a user, MySQL does not directly kill user function,But mariadb already has this function, this really is too intimate, the practical value is extremely high.2. Hurry up and hit the command to see the results.MariaDB [(None)]> Select version ();+-----------------+| Version () |+-----------------+| 10.1.20-mariadb |+------

1, installation mariadbYum-y Install mariadb Mariadb-serverInstallation Complete mariadb, first start mariadbSystemctl Start mariadbSet boot upSystemctl Enable MARIADBThe following is a simple configuration of mariadbMysql_secure_installationThe first is to set the password, you will be prompted to enter the passwordEnter current password to root (enter for none)

'. ' St_stock_m 'WHERE(' ma '. ' St_stock_m '. ' Goods_no '='1230480') and (CACHE>(' ma '. ' m '. ' Cell_no ')=' ma '. ' st_stock_m '. ' Cell_no ')))) and(' ma '. ' loc '. ' Cell_no ')=' ma '. ' m '. ' Cell_no ')) Execution plan In fact, the subquery returns no more than 3 result sets, usually we think that the internal will be based on the use of the result set to check, the efficiency will be very fast, but it is not Thought the internal operation would be Step 1:SELECTGroup_concat (Cell_n

Note:Operating System: CentOS 5.10 32-bitMariaDB: mariadb-5.5.33aMariaDB database storage directory:/data/mysqlPreparation:1. Configure the IP address, DNS, and gateway to ensure that the remote connection tool can be used to connect to the server. The yum command on the server can be used normally.2. configure the firewall and enable port 3306Vi/etc/sysconfig/iptables # Edit-A RH-Firewall-1-INPUT-m state -- state NEW-m tcp-p tcp -- dport 3306-j ACCEP

The reason for mariadb to replace MySQL MARIADB is used exactly as MySQL. Since Oracle bought MySQL, it is no longer free to open source, but MARIADB is still free to open source. Some of the top sites, such as Google, Wikipedia, LinkedIn, and Mozilla, have migrated to MARIADB. Where is the advantage: Backward compatib

Tags: str 127.0.0.1 def RES development not MySQL open source supportFirst, MySQL background informationMySQL became popular in the early days of the Internet, pursuing speed, simplicity, open source, and support for almost all operating systems. Fully support multi-user, multi-threading, support massive data storage, using MyISAM, InnoDB two big storage engine complement each other. But with InnoDB and MySQL itself being acquired by Oracle, the founder of MySQL has developed mariadb.MARIADB's b

CentOS7.0 install and configure the LAMP server (Apache + PHP + MariaDB) MariaDBCentOSApacheLAMP Preparation: CentOS 7.0 system installation and configuration graphic tutorial Http://www.osyunwei.com/archives/7829.html 1. configure the firewall and enable port 80 and Port 3306 CentOS 7.0 uses firewall as the firewall by default. here, it is changed to iptables firewall. 1. disable firewall: Systemctl stop firewalld. service # stop firewall Syste

Install MariaDB (MySQL) in CentOS6.5 1. Get mariaDB installation package on the official website through xftp to the root directory 2. Expand the MariaDB file tarxfmariadb-5.5.42-li Install MariaDB (MySQL) in CentOS 6.5 1. Get the installation package of mariaDB on the offic

MySQL and MariaDB traditional master-slave cluster configuration The most basic cluster mode for MySQL and MariaDB is the master-slave mode, which is also the most widely used cluster mode for many small and medium-sized enterprises. This cluster is easy to deploy and can be used. Let's step by step. Install MariaDB 10.1 source code in the default path/usr/local/