[FX.php List] Database table modification

[Duncan, Blair]

Thanks, you triggered something there.
I don't need a sort, all I need to do is a quick find.
The result is instant!

So the process is this for each table.
Show all records.
Check found count vs previously recorded foundcount and if not the same there has been a change.
(that takes care of possible deletions that would not show up in the next step.)

Search for modifiedtimestamp > previously recorded timestamp, if any found there has been a change.




Blair Duncan | Variable Data Manager
SGL Communications | 2 Bloor St W, Suite 3100 Toronto ON M4W 3R6
T 416-413-7537 | C 416-845-3357 | F 416-972-5656



-Original Message-


Please make a 1 to 1 related table with the calc fields and see if it
speeds up the process.

ggt

2010/5/13 Tim 'Webko' Booth <tim at nicheit.com.au>:
>
> On 13/05/2010, at 2:06 AM, Duncan, Blair wrote:
>
> Just as a followup...
>
> My hacky solution although a bit faster still takes an incredibly long time
> 10 seconds or so to process, which is far too long - just to determine if a
> table has been modified.
>
> Here is where I am at:
> I have a table with about 15,000 records, the table has about 80 fields 3/4
> of which are unstored calcfields.
> Accessed through a layout that contains a single autoentered
> modifiedtimestamp field.
>
> I also have another table similar to the one above above.
>
> In PHP, I call a preFindScript that goes to each layout, sorts on the
> modified timestamp field and goes the last record.
> Comparing the timestamp and record count with a pre-recorded timestamp and
> record count enable me to determine if the table has been modified.
> Sorting seems to take the time which I thought that since the field is
> indexed would be much quicker.
>
> The larger the set, the longer the sort  time - if you are fairly sure that
> *something* should have been modified in the last (24 hours / 2 days / week)
> - perform a find and sort on the results...
> Cheers
> Webko
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