How to Get NULLs Horribly Wrong in SQL Server
NULLs in SQL are a mixed blessing. The Three-Valued Logic of SQL has its uses but can cause difficulties to anyone who assumes that NULL has a 'value'. It can make reports go horribly wrong in a number of alarming ways, as Robert Sheldon explains.

When I check the length, I get these results:
A table name is limited to 128 characters. How does this work?