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 >> Varying fields may not cause a big cycle doing %len, but what about what
goes on when it's keeping track of the length of that string as it changes?

It is generally much more efficient there as well.

Consider building an HTML string in a loop (Table subfile type thing).

Within the loop you are going to be doing an HTMLString = %TrimR(HTMLString)
+ Newstuff

Consider what happens here.  We start by working out how many blanks there
are at the end of the current string (i.e. a CHECKR), then we start to copy
the new data in.  Next time though the loop we do it over again.  Given that
we are often using a string of about 32K or so this can be a pretty slow
process.

Using a variable length field on the other hand we would do HTMLString =
HTMLString + %TrimR(Newstuff)

This time we calculate how many characters to move form the source field and
simply start moving it to the target field using the current length of the
target field + 1 to supply the offset.  The bigger the field, the bigger the
difference in speed.

PS.  Brad - disagreeing with you doesn't constitute nit-picking.  It just
means I disagree with you!

Jon Paris
Partner400



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