One of the many ways a relational table differs from the file structures used by pre-relational storage systems is that the tables, rows and columns can have constraints on them. This allows you to reduce the types of bad data that can be loaded into your tables.
2024-06-17
In theory, you get better execution plans when SQL Server understands the contents of your tables. In practice, well, it's hit or miss.
2018-11-23
3,977 reads
2016-02-23
1,502 reads
Check Constraints play a very important role in SQL Server as it allows data validation rules to be imposed at the SQL Server instance level itself instead of writing rules for each application.
2013-08-08
5,038 reads
When Agile meets 'Big Design', the result can be frustration on both sides. Is it possible for database development to to easily coexist with Agile methodologies for application development? Nick suggests that the technical solutions already exist, and the dissonance is more due to cultural and organizational problems
2011-05-04
6,129 reads
A number of different processes that can be used to make sure your data validates against your business rules. This article discusses how you can use database "check constraints" to validate your data within the SQL Server database engine.
2009-04-10
2,542 reads
Reading tutorials is fine. Shipping something is better. If you are trying to break...
By Steve Jones
We work hard at Redgate, though with a good work-life balance. One interesting observation...
By Arun Sirpal
Fourth in a series on Ai and databases. What Read-Only Advisory Actually Means A...
Comments posted to this topic are about the item Liability for AI Errors
Hello , I would like to run a stored procedure on a secondary replica...
Comments posted to this topic are about the item Pro SQL Server Internals
I run this command to start SQLCMD:
sqlcmd -S localhost -E -c "proceed"At the prompt, I type this (the 1> and 2> are prompts):
1> select @@version 2> goWhat happens? See possible answers