table mysql

mysql> show databases;Mysql> Show Databases \g #以行的方式显示-e commonly used with shell scripts.[Email protected] ~]# mysql-e ' show databases '-usystem-p123456mysql> CREATE DATABASE HA;mysql> CREATE database ' ha-test ';[Email protected] ~]#

Brief introductionMySQL is an open source small relational database management system, the developer of the Swedish MySQL AB company. MySQL is now widely used in small and medium-sized websites on the internet. Because of its small size, fast speed,

1. Use the SHOW statement to find out the current database on the server: mysql> show databases; + ---------- + | Database | + ---------- + | mysql | test | + ---------- + 3 rows in set (0.00 sec) 2. CREATE a DATABASE abccs mysql> CREATE Database

I. SQL Quick Start The following is an important quick reference for SQL. For SQL syntax and features added to standard SQL, please query the MySQL manual. 1. Create a table A table is one of the most basic elements of a database. Tables and tables

Last time we introduced: suitableBeginnersOfMySQL Study NotesLibrary operation example. This article describes some simpleTable operationsFor example, let's take a look at this part. 1. Create a table Command: create table ( [,... ]); mysql>

In daily work, mysql is used simply, so the Common commands are summarized as follows: Use the mysqldump command: Back up and export Databases Mysqldump-h database_ip-u Username-p -- opt databasename> backup-file. SQL Export only the database table

Basic MySQL Data Table operation 3: comprehensive example 1. Create a database mysql> create database company;mysql> use company;  Ii. Create a table 1. Create an offices table mysql> create table offices -> ( -> officeCode int(10) NOT NULL

When MySql is started in windows 7, the error Table 'mysql. plugin 'doesn' t exist solution: 64-bit Windows 7, install mysql5.27 _ win64, and customize the installation to D:/database/mysql. In the last step of initialization, the configuration file

With MySQL, you can choose between the three basic database tables. When creating a table, you can tell MySQL which table type it should use for the table. MySQL With MySQL, you can choose between the three basic database tables. When creating a

The MyISAM storage engine only supports table locks, which is the only supported lock type in MySQL versions. With the increasing requirements of applications on transaction integrity and concurrency, MySQL began to develop a transaction-based

First of all, you need to download and install the corresponding modules. You can search for them on the internet and install them easily, after installation, the MySQLdb folder under the site-packages folder under the Lib folder under the python

Reprinted from: http://blog.csdn.net/fzhmoive/article/details/20042437,http://blog.csdn.net/leili0806/article/details/8573636 1. Download MySQL Community Server 5.6.162. decompress the MySQL packageDecompress the downloaded MySQL package to the

Basic MySQL Data Table operation 3: A comprehensive example of basic mysql operations 1. Create a database mysql> create database company;mysql> use company; Ii. Create a table 1. Create an offices table mysql> create table offices -> ( ->

MySQL Database Advanced query multi-Table query and join Table query   Query all emp_name information in the EMP table. Mysql> select * from EMP where emp_name = 'xiaotian ';   The query result is as follows: + -------- + ---------- + ---

Document directory 1.1 connect to MySQL 1.2 change New Password 1.3 new users added 1.4 Start and Stop MySQL 2.1 database operations 2.2 table operations 3.1 export database files from a database 3.2 importing data from external files to

MySQL clears tablespace fragmentsCauses of fragmentation (1) the storage of a table is fragmented. When a row of content is deleted, the space in the row is blank and left blank. A large number of delete operations are performed within a period of

Basic operations on MySQL Data Tables and basic operations on mysql DATA The following outlines are provided in advance, and details and examples are provided tomorrow: 1. Create a data table 1) Create Table syntax 2) use primary key constraints 3)

Mysql database is a very good database suitable for small and medium-sized enterprises. It is highly practical and is open-source and free. I hope you can learn it well. I am declaring that all the content here is recorded in one word. I hope you

Getting started with MySQL I. SQL quick start The following is an important quick reference for SQL. for SQL syntax and features added to standard SQL, Please query the MySQL manual. 1. create a table A table is one of the most basic elements of a

I. MySQL locks the MyISAM and MEMORY engines to implement row-table locks, the BDB storage engine to implement page-level locks, and the InnDB storage engine to implement row-level locks. Granularity: from large to small (MySQL only supports