SET NULL

Assess

Techniques

A referential action that sets dependent foreign key values to NULL when the parent row changes or is deleted.

Why it's here

Placed in Assess: 1 article(s) of evidence from 1 source(s), led by product launches, with 1 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.

Evidence (1)

6InfoQ·9/28/2026product_launch
AWS Adds Foreign Key Constraints to Aurora DSQL
AWS has announced support for foreign key constraints in Aurora DSQL, enabling applications to enforce referential integrity directly in the database. The update also includes referential actions such as CASCADE and SET NULL, closing a gap that users had identified as a blocker to adoption.