Django provides an Object-Relational Mapping (ORM) layer that allows you to interact with your database using Python code instead of writing raw SQL queries. The ORM provides a high-level, Pythonic API for performing database operations. Here are some common Django ORM commands and their equivalent SQL statements:
-
Creating Objects:
- Django ORM:
Model.objects.create(**kwargs)
- SQL:
INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...)
- Django ORM:
-
Saving Objects:
- Django ORM:
object.save()
- SQL:
UPDATE table_name SET column1=value1, column2=value2, ... WHERE condition
- Django ORM:
-
Querying Objects:
- Django ORM:
Model.objects.all()
- SQL:
SELECT * FROM table_name
- Django ORM:
-
Filtering Objects:
- Django ORM:
Model.objects.filter(**kwargs)
- SQL:
SELECT * FROM table_name WHERE condition
- Django ORM:
-
Ordering Objects:
- Django ORM:
Model.objects.order_by(*fields)
- SQL:
SELECT * FROM table_name ORDER BY column1, column2, ...
- Django ORM:
-
Updating Objects:
- Django ORM:
Model.objects.filter(**kwargs).update(**update_kwargs)
- SQL:
UPDATE table_name SET column1=value1, column2=value2, ... WHERE condition
- Django ORM:
-
Deleting Objects:
- Django ORM:
object.delete()
- SQL:
DELETE FROM table_name WHERE condition
- Django ORM:
These are just a few examples of how Django ORM commands correspond to SQL statements. The Django ORM handles many more complex operations, such as complex filtering, grouping, and aggregations, while abstracting away the underlying SQL syntax.
Top comments (0)