Django - F Expressions for database-level operations

This video looks at F Expressions in Django, which can be used to generate SQL expressions that describe the required operation at the database level. For example, F Expressions can be used to filter QuerySets with a condition that compares one column's value to another column's value at the database level.

F Expressions can be used when:
- updating date with update()
- filtering data with filter() and exclude()
- annotating data with annotate()
- aggregating data with aggregate()

And more!

📌 𝗖𝗵𝗮𝗽𝘁𝗲𝗿𝘀:
00:00 Intro
00:30 F Expressions in Django
11:00 F Expressions in filter() functions to compare with other column values
13:03 F Expressions in Django annotate() function
15:32 F Expressions in Django aggregate() function
17:48 refresh_from_db() function in Django

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📚 𝗙𝘂𝗿𝘁𝗵𝗲𝗿 𝗿𝗲𝗮𝗱𝗶𝗻𝗴 𝗮𝗻𝗱 𝗶𝗻𝗳𝗼𝗿𝗺𝗮𝘁𝗶𝗼𝗻:
F expressions: https://docs.djangoproject.com/en/4.2...

#python #django #webdevelopment #database #sql