Posted by Erland Sommarskog on 03/02/06 01:06

Shwetabh (shwetabhgoel@gmail.com) writes:
> My question is, is there any difference between a NULL and a Blank
> (Unknown, Not Applicable) field in MS SQL or are they the same?

As said in other posts, they are not. I just like to add one thing:

NULL stands for "unknown, not appliable". An empty string, is very much
a defined value as far as SQL is concerned.

--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se

Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx

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