Django basis (three) -models

First, the configuration database

1) django default support sqlite, mysql, oracle, postgresql database.

• sqlite: django sqlite database used by default, the default comes sqlite database-driven, engine name: django.db.backends.sqlite3
• mysql: engine name: django.db.backends.mysql

2) mysql driver

• MySQLdb(mysql python)
• mysqlclient
• MySQL
• PyMySQL (pure mysql driver's python)

3) In django project will use the default sqlite database, the following settings in settings where:

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

If we want to change the database such as mysql, you need to be modified as follows:

= {DATABASES 
    'default': { 
        'ENGINE': 'django.db.backends.mysql', 
        'NAME': 'Django_ORM', # your database name 
        'USER': 'root', # your database username 
        ' pASSWORD ':' mysql ', # your database password 
        ' hOST ': '10 .0.0.12', # your database host, blank defaults to localhost 
        'pORT': '3306', # your database port 
    } 
}

note:

#NAME that is the name of the database, the database must have been created before mysql connection, and db.sqlite3 under the above project sqlite database is created automatically 
#USER and PASSWORD are the user name and password for the database. 
# After setting, before restarting our Django project, we need to activate our mysql. Then, start the project, will complain: NO Module named MySQLdb 
# This is because the default django import your drive is MySQLdb, but MySQLdb for py3 a big problem, so we need to drive is PyMySQL 
# So, we just need to find the name of the project __init__ under the file, which is written: 

Import pymysql 
pymysql.install_as_MySQLdb () 

# other error 
https://blog.csdn.net/lijing742180/article/details/91966031