Is it possible to apply a function like LookUpRows or Lookup to an array created with BuildRowSetFromString?
I have this:
SET @rowSet = BuildRowSetFromString(@ItemsString2, '|')
I'd like to know if there's a function on which I can do:
SET @var = LookupRows(@rowSet, ITEM_ID, ... )
I am trying already using a FOR loop. I want to know if there's a function that can do this.
No. I wish.
Best bet would be to use arrays in Server-Side JavaScript or possibly GTL.
If you want to over-engineer it, you can use XML and XPATH to do some array functions in AMPScript. I've written up a use-case with examples here on my personal blog.
Also, there is a lot more SFMC dicussion going on over in http://salesforce.stackexchange.com.