sqlalchemy

SQLAlchemy ORM and SQL toolkit for Python

Databases SQLAlchemy Order By Desc: How to Sort Descending

Fix NameError in SQLAlchemy order_by() for descending sort. Use desc() import or column.desc() to ORDER BY amount DESC with joins and filters. Complete examples for sql alchemy queries.

#sqlalchemy
#python
#databases
#orm
#sorting

1 answer• 1 view

01/19/2026, 09:54 AM

Databases Trigger SQLAlchemy onupdate for Bulk Updates & setattr

Learn why SQLAlchemy mapped_column onupdate=func.now() doesn't trigger with setattr or bulk updates. Fix automatic timestamp updates in ORM, bulk_update_mappings, and Query.update with code examples and best practices.

#sqlalchemy
#orm
#databases
#python
#bulk-update

1 answer• 1 view

01/09/2026, 03:32 PM