Tac11 (6/30/2015)
...I didn't understand why execution plan suggesting me to create non-clustered index on this while the table already has a clustered index!!!
Then you need to read this article[/url].
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