MySQL

Reprint please specify the source http://www.cnblogs.com/havedream/p/5075263.html Reinstall the system after the installation of MySQL, see the official web has MySQL 5.7.10 can download on the point, and then began a long installation

#!/bin/sh#date: 2015-12-07#filename: check_mysql-rep.sh#linuxzkq#Email: [Email protected]#version: v1.0Mysql_cmd= "Mysql-uroot-poldboy"error_num= (1158 1159 1008 1007 1062)While TrueDoRep= ($ ($Mysql _cmd-e "show slave status\g;" | Egrep "_running|

1. Preparation before installation1 Yum Install GCC GCC Perl 2 Yum " Development Tools " 3 Yum Install bzip2-devel libcurl-devel2, installation CMake1 wget https://cmake.org/files/v3.4/cmake-3.4.1.tar.gz2tar -zxvf cmake-3.4. 1. Tar . GZ 3 cd cmake-3.

The first is to build the environment, I was testing on a virtual machine1> first install MySQL RPM-IVH mysql-server-5.5.38-1.rhel5.i386.rpmRPM-IVH mysql-client-5.5.38-1.rhel5.i386.rpmIf the error says less Prel install Prel packageyum-y Install

Always want to try MySQL, but has not been formally used it, perhaps because the first time the installation forgot the root password, toss too long left the Sequela bar, always a little afraid of. The first time today to use the command line to

It turned out that Tomcat could not find the MySQL jar package. Later, the Mysql-connector-java-5.1.7-bin.jar was imported into the Tomcat Lib directory, OK, hey ...In a Java project, you just need to introduce Mysql-connector-java-5.1.7-bin.jar to

Configure Master-Slave preparationCreate a test database in our LordFirst log in to master MySQL, or use the absolute path/usr/local/mysql/bin/mysqlMysql> CREATE Database db1; > QuitCopy MySQL Library123. sqlCopy MySQL Library123. sqlLog in to

Basic tutorial on statistical query of several data types in MySQL, Average statisticsThe select avg () FROM syntax is used to calculate the average statistics FROM a data table.Syntax: SELECT AVG(column) FROM tb_name This SQL syntax is used to

Share some of MySQL's functional and practical Linux shell scripts, Memcached Startup Script # vim /etc/init.d/memcached #!/bin/bash#=======================================================================================# chkconfig: - 80 12#

Add and query MySQL Data Using a PHP script, MySQL Insert Into add dataINSERTThe insert into syntax is used to add data records to a data table.Syntax: INSERT INTO tb_name VALUES (value1, value2,...) This syntax inserts data records into all fields

Simple sorting of MySQL Log operation commands, 1. First confirm whether your log is enabled MySQL>show variables like 'log_bin'; If ON is enabled, the log file is in the data directory of the MySQL installation directory. 2. How to know the

In-depth analysis of MySQL transaction isolation and its impact on performance, The SQL standard defines four isolation levels, including some specific rules to limit which changes inside and outside the transaction are visible and which are

Super deployment tutorial of MySQL High Availability failover solution MHA, MHA IntroductionMHA is a MySQL failover solution written by MySQL daiu in Japan using Perl to ensure high availability of the database system. failover and MHA deployment

The problem of coexistence between automatic synchronization of MYSQL Update Time and default Creation TimeWhen using SQL, I want to automatically fill in the Update time when updating data. How can I implement it in mysql? For example, create a

Tutorial on installing and configuring MySQL performance monitoring software Nagios, Nagios is an open-source IT infrastructure monitoring system that monitors the running status and network information of mature Linux systems. Nagios can monitor

Basic tutorial on setting character sets in MySQL, 1. View character set variables mysql> show variables like 'character%'; +————————–+——————————-+| Variable_name | Value |+————————–+——————————-+| character_set_client | latin1

PureFTP uses MySQL to implement user authentication, Pureftp integrates mysql authentication to save ftp user information to the mysql database, which enables centralized management of a large number of ftp servers, to maintain a user account, you

MySQL uses the general query log to find the most frequently queried statements, MySQL enable general query logAfter mysql opens the general log, all query statements can be obtained in a readable manner in the general log file, but the general log

ORA-00957: duplicate column names 1. Error description ORA-00957: duplicate column names 2. Error cause SQL> create table info( 2 stu_id varchar2(7) not null, 3 stu_name varchar2(20) not null, 4 stu_age varchar(2) not null, 5

REMOTE_LOGIN_PASSWORDFILE (10.2)REMOTE_LOGIN_PASSWORDFILE (whether the password file can be used during remote connection) Property Description Parameter type String Syntax REMOTE_LOGIN_PASSWORDFILE ={NONE |