A database must be able to maintain and enforce the business rules and relationships in data in order to maintain the data model. It does this through referential constraints. They aren't complex, but are powerful, especially with the means to attach DRI actions to them. Joe Celko explains all, and pines for the ANSI CREATE ASSERTION statement.
2015-02-25
9,100 reads
By using cascading referential integrity constraints, you can define the actions that SQL Server 2005 takes when a user tries to delete or update a key to which existing foreign keys point.
2008-06-20
2,344 reads
By Kevin3NF
In parts 1 and 2 of this series, we’ve gathered info and done the...
By Steve Jones
At SQL Saturday Boston 2025, I gave a presentation on local LLMs and there...
By gbargsley
Are you diversifying your DBA skillset? My recent job search made one thing clear:...
Hi we run 2019 standard. Our warehouse's ssis based etl is klunky but so...
Comments posted to this topic are about the item Unlocking High-Concurrency Inserts in SQL...
Comments posted to this topic are about the item Vector Datatype
The new Vector datatype in SQL Server 2025 is a binary type that has a few parameters. What parameters are required?
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