Multiple database support in django

Question

From some forum I came to know that Multiple database support is added in Django at lower level, but the higher level apis are not added yet.

Can anyone please tell

Answer 1

From Django 1.2, it will support multiple databases. See: http://docs.djangoproject.com/en/dev/topics/db/multi-db/ Version 1.2 is now in beta

Answer 2

The most recent discussion I've seen on it was in the Proposal: user-friendly API for multi-database support django-developers thread, which also has an example of one way to use multiple databases using Managers in the original message.

Answer 3

I think you will have to resort to "raw sql" .. kinda thing ..
look here: http://docs.djangoproject.com/en/dev/topics/db/sql/

you need a "connection" to your other database, if you look at django/db/__init__.py around line 39 (in my version ..)

connection = backend.DatabaseWrapper(**settings.DATABASE_OPTIONS)

try to take it from there ..
P.S. I haven't really tried this or anything .. just trying to point in the general direction of what I think might solve your problem.

Answer 4

If you simply need multiple connections, you can do something like this:

from django.db import load_backend
myBackend = load_backend('postgresql_psycopg2') # or 'mysql', 'sqlite3', 'oracle'
myConnection = myBackend.DatabaseWrapper({
    'DATABASE_HOST': '192.168.1.1',
    'DATABASE_NAME': 'my_database',
    'DATABASE_OPTIONS': {},
    'DATABASE_PASSWORD': "",
    'DATABASE_PORT': "",
    'DATABASE_USER': "my_user",
    'TIME_ZONE': "America/New_York",})
# Now we can do all the standard raw sql stuff with myConnection.
myCursor = myConnection.cursor()
myCursor.execute("SELECT COUNT(1) FROM my_table;")
myCursor.fetchone()