RE: SQL Server JOINS – SQLServerCentral

SSC Guru

Points: 186127

August 22, 2014 at 9:38 am

Eirikur Eiriksson (8/22/2014)
gbritton1 (8/22/2014)
I don't think that's a Cartesian product. If it were, you would have 89 (8*10) rows of ouput.
A CROSS JOIN would give you a Cartesian Product
A CROSS JOIN would produce a full Cartesian Product, equal duplicate values will produce partial Cartesian Product, regardless of the join type.
😎

Another of Jeff's articles to the rescue:

http://www.sqlservercentral.com/articles/T-SQL/61539/[/url]

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden