Django - Subquery, OuterRef and Exists objects for Database SQL Subqueries
Автор: BugBytes
Загружено: 2023-09-28
Просмотров: 9425
In this video, we'll look at Subqueries in Django. We'll see how to use subqueries in annotations, filter statements and with the Exists subclass.
Subqueries can be useful for performing these operations on complex related information, and can exist in the SELECT and WHERE expressions (among others) of an SQL SELECT Query.
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📌 𝗖𝗵𝗮𝗽𝘁𝗲𝗿𝘀:
00:00 Intro
00:58 Subqueries in SQL
04:48 Writing Subqueries with Django
16:58 Exists subqueries in Django
▶️ Full Playlist:
• Django ORM Deep Dive
𝗦𝗼𝗰𝗶𝗮𝗹 𝗠𝗲𝗱𝗶𝗮:
📖 Blog: https://bugbytes.io/posts/
👾 Github: https://github.com/bugbytes-io/django...
📚 𝗙𝘂𝗿𝘁𝗵𝗲𝗿 𝗿𝗲𝗮𝗱𝗶𝗻𝗴 𝗮𝗻𝗱 𝗶𝗻𝗳𝗼𝗿𝗺𝗮𝘁𝗶𝗼𝗻:
Django Subqueries: https://docs.djangoproject.com/en/4.2...
Django Exists object: https://docs.djangoproject.com/en/4.2...
#python #django #webdevelopment #database #sql
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