2015-05-01
1,797 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)
27,197 reads
2014-03-27
2,358 reads
2013-06-05
2,447 reads
2013-05-10
2,257 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
27,359 reads
2010-06-17
3,954 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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Specifying the Collation
Comments posted to this topic are about the item Specifying the Collation
Question of the Day
Specifying the Collation
I am dealing with issues on my SQL Server 2022 instance related to collation. I have an instance collation of Latin1_General_CS_AS_KS_WS, but a database collation of Latin1_General_CI_AS. I want to force a few queries to run with a specified collation by using code like this:
DECLARE @c VARCHAR(20) = 'Latin1_General_CI_AS'
SELECT p.PersonType,
p.Title,
p.LastName,
c.CustomerID,
c.AccountNumber
FROM Person.Person AS p
INNER JOIN Sales.Customer AS c
ON c.PersonID = p.BusinessEntityID
COLLATE @c
Will this solve my problem? See possible answers