Ken Mayer <firstname.lastname@example.org>
||Thu, 7 Feb 2019 13:24:01 -0800
On 2/7/2019 12:29 PM, Mervyn Bick wrote:
> On 2019-02-07 10:08 PM, Ken R. wrote:
>> I'm working on a older program that has the following line:
>> COPY RECNO() TO TEMP
>> in a loop through about 10,000 records. By the end of that loop the
>> PlusRun memory requirement has grown to over 10 times its memory
>> requirements and machine performance slows to a crawl. I have narrowed
>> the problem down to that line. So I'd like to replace that line <COPY
>> RECNO() TO TEMP> >with something simple and straightforward. Any
>> quick advice would be much appreciated. Thanks!!
>> Ken R.
> It's a LONG time since I used XDML but that syntax looks wrong. It
> certainly doesn't work in dBASE 12.3.1. It gives the error "Unallowed
> phrase/keyword in command: recno() to temp"
> If you want to copy the entire table open in the workarea to TEMP then
> COPY TO TEMP
> If you want to copy selected records then the syntax would be something
> COPY TO TEMP FOR RECNO() > 5 AND RECNO() <10
As Mervyn points out, unless there's a reason to put that into a loop,
it's probably going to be SERIOUSLY slow after a while ... the loop is
processing the records one at a time. If a command like what Mervyn
shows will work for you, it will undoubtedly be faster and use less memory.
Ken's dBASE Page: http://www.goldenstag.net/dbase
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dBASE Books: http://www.goldenstag.net/dbase/Books/dBASEBooks.htm
dBASE Tutorial: http://www.goldenstag.net/dbase/Tutorial/00_Preface.htm