create table tablename

  When I first used MySQL administrator to create a database, the table is of the InnoDB type by default, so I did not care about it. Later, when using access2mysql to export data, I found that only tables of the MyISAM type can be imported. I

Source: http://zhumeng8337797.blog.163.com/blog/static/100768914201179112318218/ 1. DESC tablename;For example, mysql> DESC jos_modules;+ ------------------ + --------------------- + ------ + ----- + --------------------- + ---------------- +| FIELD

MySQL SummaryChange Character SetSet names utf8 will be modifiedCharacter_set_clientCharacter_set_connectionCharacter_set_results UseSet character_set_database = 'utf8

MySQL memory table usage Memory tables use Hash hash indexes to store data in the memory. Therefore, it is extremely fast and suitable for caching Small and Medium databases. However, the usage is limited. The following are some of the feelings

Table creation: Create Table [dB. DBO]. tablename (Stud_id int constraint constraintname1 not null primary key, Name nvarchar (5) not null, Birthday datetime, Gender nchar (1 ), Telcode char (12 ), Zipcode char (6) constraint

MyISAM is the default storage engine in MySQL. Generally, not many people care about this. It is a tricky thing to decide what storage engine to use, but let's take a look at it. Here we only consider MyISAM and InnoDB, because these two are the

A comprehensive understanding of the Python Web development Framework Djangodjango is an open-source Web application framework, written by Python. Using MVC's software design model, the main goal is to make it easy to develop complex,

Ec (2); [PDO configuration] 1. Make sure that the PHP version is 5.2.5 or above (mainly for 5.2.5 I used. For the first time I did not know 5.1.x, the result has been poor ~ _~) 2. in php. find the DynamicExtensions Extension Section in ini, remove

Functions:Require_once ("backdata. class. php ");$ Link = @ mysql_connect ("localhost", "Database Name", "password") or die ('could not connect to server .');Mysql_query ("use cms", $ link );Mysql_query ("set names utf8", $ link );$ Dbbck = new

Hive provides multiple data access methods. Among them, the best support for java is its most native support. The legendary JDBC. Haha! Hive is in the lib directory under the hive installation directory. Hive provides multiple data access methods.

PHP and MySQL Study Notes 9: creating a Web database 1. basic steps for deploying MySQL services on the server 1) install MySQL (Command installation and installation package installation) 2) check whether an independent operating system user

Database backup class As long as we are on-line search in the N-more class code, below I would like to summarize several good database backup hope to help you. Database backup Classes How to use: code as follows copy code

PHP Example Tutorial: Website online number of program code, the background has MySQL database support. You can directly count the current number of people online. The first is to create a MySQL database table. CREATE TABLE TableName (field type

To import and export a MySQL file, follow these steps: 1. MySQL Command Line Mode settings: Desktop> my computer> Properties> environment variables> New> Path = "; Path/MySQL/bin;" where path is the installation path of MySQL. 2. A brief

# Region Export FilePrivate static void ImportPage (HttpContext Context, string app, string entity, string id){# RegionAppEntity. App AppObj = AppEntity. GetApp (app );AppEntity. Entity En = AppObj. GetEntity (entity );# EndregionString columns =

MySQL-> create database dbname; create database MySQL-> create table tablename; create table MySQL-> show databases; display DATABASE information and available DATABASES. MySQL-> USE dbname; select database MySQL-> show tables; displays table

Mysql Character Set and verification set, mysql Verification I. Character Set 1. mysql's Character Set settings are flexible You can set the default Character Set of the server; Default Character Set of the database; The default Character Set of the

Mysql Command for viewing table structure and table creation, mysql Command for viewing table structure 1, desc tablename; mysql> desc authors;+-------+--------------+------+-----+---------+----------------+| Field | Type | Null | Key |

To import and export a MySQL file, follow these steps: 1. MySQL Command Line Mode settings: Desktop> my computer> Properties> environment variables> New> PATH = "; path \ mysql \ bin;", where path is the installation PATH of MySQL. 2. A brief

I. SQLite clears the table and returns the auto-incrementing column to zero. The SQL standard contains the TRUNCATE TABLE statement, which is used to clear all contents of the TABLE.SQLite does not support this statement. You can directly use delete