2015-05-01
1,799 reads
NULL
Database Design Follies: NULL vs. NOT NULL
It sounds simple enough. Either your column will always have a value or it may not. Yet somehow such a seemingly simple decision can become a never-ending debate where database schema begins to resemble superstition and designing effective tables seems more contentious than you expected it to be.
2016-02-26 (first published: 2014-10-30)
27,316 reads
2014-03-27
2,363 reads
2013-06-05
2,453 reads
2013-05-10
2,263 reads
2012-05-11
3,357 reads
Working with null values in SQL XML
We all know NULL values must be dealt with carefully in T-SQL, but how exactly do you best deal with them in SQL XML?
2010-10-26
27,654 reads
2010-06-17
3,960 reads
2010-04-07
4,056 reads
Accommodating Null Values in SQL Server
The key to working with null values properly is to accommodate them consistently. Learn a few tricks that will help you do just that.
2009-09-16
4,497 reads
Blogs
The Agent Era: When “How do I…?” Replaces “Where do I click?”
By Arun Sirpal
After a year away getting to grips with AI and its application across the...
Beware of Generic SQL Server License Keys (What to Use Instead)
By SQLPals
Beware of Generic SQL Server License Keys (What to Use Instead) ...
On Speaking Well
By Brian Kelley
Professor Patrick Winston of MIT used to give a one-hour talk about how to...
Forums
Creating a JSON Document II
Comments posted to this topic are about the item Creating a JSON Document II
Backing Up Azure Key Vault EKM Key: Stairway to TDE Level 6
By VishnuGupthanSQLPowershellDBA
Comments posted to this topic are about the item Backing Up Azure Key Vault...
Every Database Has Problems
Comments posted to this topic are about the item Every Database Has Problems
Question of the Day
Creating a JSON Document II
I want to create a JSON document that contains data from this table:
TeamID TeamNameCity YearEstablished 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960If I run this code, what document(s) is/are returned?
SELECT json_objectagg( n.city : n.TeamName) FROM dbo.NFLTeams;See possible answers