Mike Menser (9/22/2010)
Can someone please explain the drawback of having a nested replace?
It can be awkward to get all those pesky commas and brackets in the right place? Small price to pay for top performance. Nested REPLACE's are super-speedy.
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