Whether you're a budding SQL learner or someone trying to brush up on database concepts, you've probably stumbled across the mysterious NULL and the ever-reliable DEFAULT. But what do they really mean ...

Object-relational mappers were built for a world in which humans wrote every query by hand. That world is disappearing. For new Python services, defaulting to an ORM such as SQLAlchemy or Django's ORM ...

In contrast, a regular `INSERT` statement retains the null value instead of inserting a default value. The [INSERT ... SELECT * FROM OPENROWSET BULK](../../t-sql ...