多个表基于外键在Django中的单个查询集中？

Question

i am using sqlite3 database in my python django application: i am defining my table structure which is similar to my actual table schema.

table1 having three column:
1. id | primary key | int
2. name | text
3. address | text

table2 having four column:
1. id | primary key | int
2. name_id | foreign key | int 
3. name_info | text
4. address_info | text


table3 having four column:
1. id | primary key | int
2. name_id | foreign key | int 
3. edu_info | text
4. busin_info | text


table4 having four column:
1. id | primary key | int
2. name_id | foreign key | int 
3. progress_info | text
4. inventory_info | text

and so on ..

i want to access all table data with in single query in django on the basis of forgein key. its not necessary all tables having same no of record.

i have already set foreign key in all model. like :

class table(models.Model):
    name = models.ForeignKey(modelname)

Answer 1

Use select_related()

YourModel.objects.select_related().filter(foreign_record__foreign_attribute__gt=foo)

The select_related gets translated to INNER JOIN query and loads all the data immediately.