Fixed #15243 -- More clearly document that the transaction functions needs to be called with a using parameter to work with a non-default database. Thanks to Jason Kotenko for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15489 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/topics/db/sql.txt

@@ -226,6 +226,8 @@ alias::
 
     from django.db import connections
     cursor = connections['my_db_alias'].cursor()
+    # Your code here...
+    transaction.commit_unless_managed(using='my_db_alias')
 
 .. _transactions-and-raw-sql: