以在 Django 中使用 MySQL 为例，首先要安装 MySQL 和 MySQL-python 组件，确保 python 能执行 import MySQLdb。
MySQL 中创建数据库：
[root@bogon csvt03]# mysql -uroot -p
Enter password: mysql> create database csvt default charset utf8;
Query OK, row affected (0.01 sec) mysql>
创建工程 csvt03，并修改 csvt03/settings.py 中的数据库设置：
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
'NAME': 'csvt', # Or path to database file if using sqlite3.
# The following settings are not used with sqlite3:
'USER': 'root',
'PASSWORD': 'wdlinux.cn',
'HOST': '', # Empty for localhost through domain sockets or '127.0.0.1' for localhost through TCP.
'PORT': '', # Set to empty string for default.
}
}
创建应用 blog 并修改 csvt03/settings.py 中的应用设置，加入 blog 应用：
INSTALLED_APPS = (
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'blog',
# Uncomment the next line to enable the admin:
# 'django.contrib.admin',
# Uncomment the next line to enable admin documentation:
# 'django.contrib.admindocs',
)
Django 中使用 ORM（对象关系模型）来操作数据库，数据库操作的关键类是：django.db.models.Model。
在 blog/models.py 中实验数据库操作如下：
from django.db import models class Employee(models.Model):
name = models.CharField(max_length=20) # map 'name' field to db
同步数据库：
[root@bogon csvt03]# python manage.py syncdb
Creating tables ...
Creating table auth_permission
Creating table auth_group_permissions
Creating table auth_group
Creating table auth_user_groups
Creating table auth_user_user_permissions
Creating table auth_user
Creating table django_content_type
Creating table django_session
Creating table django_site
Creating table blog_employee You just installed Django's auth system, which means you don't have any superusers defined.
Would you like to create one now? (yes/no): no
Installing custom SQL ...
Installing indexes ...
Installed object(s) from fixture(s)
[root@bogon csvt03]#
在 MySQL 中查看同步结果：
mysql> use csvt;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A Database changed
mysql> show tables;
+----------------------------+
| Tables_in_csvt |
+----------------------------+
| auth_group |
| auth_group_permissions |
| auth_permission |
| auth_user |
| auth_user_groups |
| auth_user_user_permissions |
| blog_employee |
| django_content_type |
| django_session |
| django_site |
+----------------------------+
rows in set (0.00 sec)
mysql> desc blog_employee;
+-------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| name | varchar(20) | NO | | NULL | |
+-------+-------------+------+-----+---------+----------------+
2 rows in set (0.00 sec)
mysql>
可见 Employee 类中的 name 所对应的数据库字段已经自动生成了。