MySQL

First of all, go to phpexcel official website to download Phpexcel, the official address is http://phpexcel.codeplex.com/. I'm under 1.8.0 version of. After decompression found still pretty big, there are more than 10 m, do not know the other

1. See which libraries are in the current server database?SHOW DATABASES; # # #查看有哪些库2. See which tables are currently used in the library?Use + name of the library to querySHOW TABLES; # # #查询库中有哪些表3. View the underlying structure?Use + the name of

Username: ' User ' @ ' host 'Creation format: Create USER ' username ' @ ' host ' [identified by ' Password ']mysql> create user ' test ' @ '% ';Query OK, 0 rows Affected (0.00 sec)Mysql> SELECT User,host,password from User;+------+-----------+------

1. Create a databaseCREATE DATABASE database_name, example: CREATE DATABASE aa;show CREATE database AA; (View database AA)2. Deleting a databaseDROP DATABASE database_name;3.mysql Supported storage engines:Show Engines\g (Note that Defaut is the

Installation: Phillips to MySQL root rootWindows +r:cmd Carriage returnCD \Msql-uroot-proot Http://study.163.com/course/co urselearn.htm?courseid=706085#/learn/video?lessonid=867411&courseid=706085 Video Web

I need to extract MySQL and DB2 data for comparison, so I need to use Python to manipulate it.Python operation on MySQL should be no problem, that is, after the installation drive can be, in the previous article on the installation of Python-mysql

1005: Failed to create table1006: Failed to create database1007: Database already exists, database creation failed1008: Database does not exist, delete database failed1009: Unable to delete database file causes database failure to be deleted1010:

 #!/bin/bash my_date= ' Date +%y%m%d ' my_time= ' date +%h%m ' my_ from 3306 Backup database, restored to 3307 database, via for-in process control for shell scripts date_yesterday= ' Date +%y%m%d--date= ' 1 days ago '  echo '------------------------

1. Background informationsemi-synchronous replicationThe common replication, the asynchronous replication of MySQL, relies on the MySQL binary log, also known as binary logs, for data replication. For example, two machines, one host (master), the

One: the insertion syntax for MySQL dataThe following is the INSERT into SQL syntax for inserting data into a MySQL data table:INSERT into table_name (field1, Field2,... fieldn) VALUES (value1, value2,...

Creating a table is a simple way to create a table person (number INT (11), name VARCHAR (255birthday DATE), or create TABLE IF not EXISTS person (number INT (11), name VARCHAR (255), birthday DATE); View MySQL CREATE table: Copy code show create

Phpmaadmin connecting to remote MySQLConnect remote MySQL Steps. phpMyAdmin, if not, go to http://www.phpmyadmin.net/home_page/downloads.php to download, install the article here with the integrated development environment Wamp phpMyAdmin

First, the basic norms You must use the InnoDB storage engine You must use the UTF8 character set Data table, data fields must be added in Chinese comments Second, the design code The library name, table name, field

PHP background is not connected to the MySQL database, view phpinfo,mysql driver normal.View Logs650) this.width=650; "Src=" https://s3.51cto.com/wyfs02/M01/9D/70/wKioL1mALB-ykR1IAAAipn-2nrs045.png-wh_500x0-wm_ 3-wmp_4-s_2710672881.png "title=" Qq201

MySQL Copy table operation we will often use, the following will give you a detailed description of several MySQL copy tables, I hope you learn the MySQL copy table can be helpful.If we have one of the following tables:ID Username password-----------

It is common to ask for statistical data every day for a period of time, or statistics at every point. But MySQL itself is a function or table that has no direct access to the point-in-time list. Here are some of the methods that you use to get a

Introduction:In the actual project development, because we do not know what is happening in the database when the actual query, database software is how to scan the table, how to use the index, so we can perceive onlyWhen the SQL statement runs, the

Create users and Groups# groupadd MySQL # useradd-r-g MySQL MySQL　　Unpack the Tarball# TAR-XVF mysql-5.6.37-linux-glibc2.12-x86_64.tar.gz# MV mysql-5.6.37-linux-glibc2.12-x86_64/usr/local# cd/usr/ local/# ln-s

One is directly modified by phpMyAdmin, and the other is by using Wamp's MySQL console.The first type:① in the phpMyAdmin interface, click "User", the user profile of all users named "root" user's password is changed to "Password to change." Modify

The first step:Click System Preferences, bottom point MySQL, on the popup page, close the serviceStep Two:Enter Terminal input: cd/usr/local/mysql/bin/Log in Administrator right after enter sudo suEnter the following command to disable the MySQL