2015-05-01
1,795 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)
27,179 reads
2014-03-27
2,357 reads
2013-06-05
2,445 reads
2013-05-10
2,255 reads
2012-05-11
3,356 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
27,311 reads
2010-06-17
3,951 reads
2010-04-07
4,053 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
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