MySQL

Mysql> SELECT something from Tbl_name WHERE To_days (now ()) –to_days (date_col) DayOfWeek (date) Returns the week index of date (1 = Sunday, 2 = Monday, ...). 7 = Saturday). Index values are compliant with ODBC standards. mysql> SELECT DayOfWeek ('

Windows Server 2008/2012 installs the PHP IIS7 MySQL environment to set up a tutorial, the details are as follows 1. Install IIS The IIS version of Windows Server 2008 is 7.0, including fastcgi, which is easy to install. Open the Start menu →

Solve case One: Today, all the Web sites on the company's servers have problems, some open no data, and some are directly blank. My first reaction was that the database was dead. Open remote, into the system, service mysqld stop failed. Service

Unicodeencodeerror: ' latin-1 ' codec can ' t encode character "Unicodeencodeerror: ' latin-1 ' codec can ' t encode character ..." This was because mysqldb normally tries to encode Everythin to latin-1. This can is fixed by executing

mysql> show global status; Can list MySQL server running various status values, my personal preferred usage is show status like ' query value% '; One, slow query mysql> show variables like '%slow% '; +------------------+-------+ | variable_name

From Google for a long time, find a very good MySQL installation process, by the way to share the following, the link is: http://blog.csdn.net/chic_data/article/details/72286329Environment: Windwos (1511) 64bit, MySQL 5.7.14 time: September 5, 2016

System Maintenance engineer Li ChaoWe have introduced the Distributed Monitoring System zabbix-automatic discovery-add MySQL multi-instance monitoring, but did not provide the key that can be used directly, too shabby, the monitoring effect is poor.

a query for numeric data:SELECT * from Tb_name WHERE sum >;query predicate:>,=,,!=,!>,!,= Two query stringSELECT * from tb_stu WHERE sname = ' Xiao Liu 'SELECT * from Tb_stu WHERE sname like ' Liu 'SELECT * from Tb_stu WHERE sname like '% Programmer

Next: Architecture Design: System Storage (4)-Block storage scheme (4)1. mysql OverviewFrom the beginning of this paper, we will discuss the performance optimization scheme and cluster scheme of the relational database based on the block storage

If the data in the MySQL production database on the line is mistakenly deleted, and the DBA goes to recover the data, it is discovered that the database is not backed up, Binlog, or open. Is there any other means to try to recover the data? Percona

I. Question-making/usr/local/webserver/mysql/bin/mysql-u root-h 172.29.141.112-p-s/tmp/mysql.sockEnter Password:ERROR 2003 (HY000): Can ' t connect to MySQL server on ' 172.29.141.112 ' (113)Two. Analysis of the problemThese problems may occur in

Section 3 Chapters MySQL Introduction to the storage engineObjective3．1 MySQLStorage Engine OverviewThe MyISAM storage engine is the default storage engine for MySQL and is one of the most widely used storage engines in MySQL today. His predecessor

Next topic: Configuring and Deploying SSD Cloud Hosting-linode to build a Java environment 8. Installation and configuration of MySQL databaseInstallation Check if Yum has MySQL inside. yum list|grep mysql I'm using a 64-bit system, so here's x86_64

Original source: http://www.cnblogs.com/luckcs/articles/2543607.htmlMySQL Master-slave Replication (master-slave) and read-write separation (mysql-proxy) practicesAs the most widely used free database in the world, MySQL believes that all engineers

Migrating SQL Server stored procedures to MySQL, encountered in SQL Server:IF @ @ROWCOUNT The corresponding to MySQL can be replaced by using the Found_rows () function.1. documentation for the Found_rows () function:Http://dev.mysql.com/doc/refman/5

Recently engaged in transaction-related statements, started the Select for update, to do experiments on ECS, I found that the version I installed only support MyISAM, do not support InnoDB, the transaction can not play. A copy of MySQL Server was

Introduction: This is a detailed page of MySQL database encoding problem 3 (modifying the database, table, and field encoding to utf8). It introduces the related knowledge, skills, and experience of PHP, and some PHP source code. Class = 'pingjiaf'

We will certainly encounter the situation of backing up the database and restoring the database during the operation of the project. We generally use the following two methods to deal with it: 1. Use into outfile and load data infile to import and

Principles and Application of pt-online-schema-change, ptonlinechangeschema If it is reprinted, please indicate the source of the blog: www.cnblogs.com/xinysu/. The copyright belongs to xiaoradish in the blog garden. Thank you for your

Google has launched a new service that makes cloud computing platforms more attractive to enterprises. On Thursday (December 11, October 6), Google revealed part of Google Cloud SQL, a scalable hosting environment for MySQL databases. The product