create database if not exists

MySQL5.6 has many new features, many of whom are interested in the global transaction ordinal function (Gtids). The reason why everyone is interested in this feature is that it's always a hassle to reconnect from the server and a new primary server,

Creating User: Create user ' username ' [@ ' host name '] identified by ' Password ';The hostname can be empty, and the default is the% permission, which means that all hosts can connect. create USER ' jredu ' @ ' loaclhost ' identified by ' jredu '

Http://blog.chinaunix.net/uid-8487640-id-3183185.htmlMySQLdb is the Python connection MySQL module, the following describes the source mode installation MySQLdb: to download the download first: please go to the official website

For MySQL has been the second time to see, the main purpose is to summarize the MySQL system on one side, before learning MySQL is to write notes in the book, later do not want to always take the book, so take a moment to summarize the notes in the

//perform the CREATE database operation This. Getexecute (G_con,"CREATE database if not exists newdb"); This. sqladdress ="- H"+ IP +"- u"+ User +"- P"+ Password +"newdb";//Backup of the databasePrivate voidBtn_dump_click (Objectsender, EventArgs e)

I. Creating a database (default character set and collation) (1) Create a database[SQL]View PlainCopy mysql> CREATE DATABASE my_db1; Query OK, 1 row Affected (0.00 sec) (2) Because MY_DB1 already exists, create an error

Database IntroductionA database (DATABASE,DB) is a collection of organized, shareable data that is stored in a computer for a long period of time. The data in the database is organized, described and stored in a certain mathematical model, with

Sql–create Sql–create Database operationCreate Dateabase test;use test;show databases;show CREATE database test;drop database test;Create database if not exists test; table Action use test; Create table user1 (

Mysql-h localhost-uroot-p123456 // connect to the database Show databases; // view the database Create database if not exists db_goods; // create a database Use db_goods; // use the database Show tables; // View tables in the database Create

Oracle access MySql via unixODBC by DBLINK: I asked how to connect oracle to remote mysql. I used hsodbc before, but I cannot display the fields with different attributes. oracle does not seem to have a transparent gateway for mysql. Is there any

Mysql database Quick Start (1), mysql database Quick Start1. Database Operations 1.1 connect to the mysql server Mysql-u root (User Name)-p 1.2 exit the mysql Command Prompt window. Exit 1.3 view version Select version (); 1.4 list databases Show

Learning mysql syntax-basics (1), mysql syntax-Basics   PrefaceMysqlMysql syntax-This article uses Navicat Premium (Database Management Tool) to connect to mysql data.This article mainly consists of two parts:1. Create a user, create a database,

Translation: create database statement, createdatabase This article is the translation of the mariadb official manual: create database. Original article: https://mariadb.com/kb/en/create-database/Https://mariadb.com/kb/zh-cn/create-database/ I

MySQL and mysql Note: The content of the trap comes from the yibai tutorial, this is just a summary of your learning experience on the road... (attached to the yibai tutorial Web site: http://www.yiibai.com/mysql)MySQL import Sample Database (http://

This article mainly introduces the script example for re-installing WordPress with one click in Linux, which is especially suitable for operations on VPS servers. if you need it, you can refer to the website which may be migrated from time to time,

0) {echo & #39; insertsuccess! & #39 ;}else {echo & #39; fail !! & #39;} dear friends ~~ I can normally add the anweisong table content in the dos window, but in the php script file, why is this mysql_query () command useless? the script selectphp

This article mainly introduces how to process XML files using Python, including how to process XML large files using Python. For more information, see the following requirements. There is a table with a large amount of data, which is updated every

MySQL database common commands summary 1. first determine whether the database/table exists, and then create a database/table CREATE DATABASE IF NOT EXISTS database_name;CREATE TABLE IF NOT EXISTS table_name; 2. modify the table name in MySQL.

Mysql encoding is added to my. ini, and sometimes not used. [Mysqld] Default-storage-engine = MyISAM Default-character-set = utf8 Default-collation = utf8_general_ci View character encoding Show variables like 'character % '; Single Character

Mysql study Notes-1st Days 1. accounts, images, and articles on webpages are stored in the database 2. Oracle, DB2, SQL server, and other multi-clock databases Use mysql PHP + mysql prime partner in PHP PHP and mysql are both open-source, free and