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
I wanted to figure out how big (or approximately how big) my dump file...
This month, I prompted bloggers to discuss whether good enough is perfect. Thank you to all...
By Steve Jones
Recently a customer asked if SQL Compare and SQL Data Compare can be used...
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Comments posted to this topic are about the item New SQL Server 2022 Functions
Can you run this code in any of your SQL Server 2019 databases without error?
CREATE OR ALTER PROCEDURE [dbo].[StevesAmazingProc]
AS
SELECT Consumer_ID ,
Trend_Category ,
Bit_Trace
FROM NewWorldDB.dbo.MarketTrend;
GO See possible answers