I'm aware of two differences that may be of importance
- if we're speaking uv - The LIST alternative is immune to a secondary select inside the loop - possibly well hidden in an itype in a subroutine of an subr.... The bare select lets the readnext loop start emediately and saves (probably) one traversal of the file. So yes You'd save overhead - lot's of wall clock time and io but probably not that much cpu. hth -- mats [EMAIL PROTECTED] wrote:
Hi all, Can someone tell me the diference between the following two examples of executing an external select? SELECT FILE TO LIST LOOP READNEXT ID FROM LIST ELSE ID = @AM UNTIL ID = @AM DO REPEAT SELECT FILE LOOP READNEXT ID ELSE ID = @AM UNTIL ID = @AM DO REPEAT Someone pointed out to me that there is overhead in selecting to a list that I need not be exposing myself to. Aren't they both kind of reading from a list somewhere anyways? Thanks ------- u2-users mailing list [email protected] To unsubscribe please visit http://listserver.u2ug.org/
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