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Load whole table into Memory
Message
De
21/08/2007 03:55:18
Suhas Hegde
Dental Surgeon
Sirsi, Inde
 
 
À
21/08/2007 03:10:28
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 6 SP5
Divers
Thread ID:
01249262
Message ID:
01249279
Vues:
19
I am basically run out of ideas


here is what my final version is
But still slower I feel comparitive to fox speed
use bhav_data in 0 alias bhav
use bhav_data in 0 alias bhav_data again

select bhav_data
set order to tag dau
max_rec = 0
scan
	max_rec = max_rec+1
endscan
* the next 3 lines of code is run only once while the application starts not always when processing to the fll

set order to
scan
endscan

set order to tag pk1 asce

select bhav
set order to tag dau
scan
	rec2 = 0
	oldexact = set('exact')
	set exact off
	select bhav_data
	seek m.symbol
   		set exact &oldexact
	dimension adate[m.max_rec],thisform.open[m.max_rec],;
			thisform.high[m.max_rec],thisform.low[m.max_rec],;
			thisform.close[m.max_rec],thisform.volume[m.max_rec]
	scan rest while symbol==m.symbol
		rec2 = rec2+1
		adate[rec2] = bhav_data.date
		thisform.open[rec2] = mton(bhav_data.open)
	    thisform.high[rec2] = mton(bhav_data.high)
	    thisform.low[rec2] = mton(bhav_data.low)
	    thisform.close[rec2] = mton(bhav_data.close)
	    thisform.volume[rec2] = bhav_data.tottrdqty
	endscan
   	dimension adate[rec2],thisform.open[rec2],;
   		thisform.high[rec2],thisform.low[rec2],;
   		thisform.close[rec2],thisform.volume[rec2]


    * process the fll

endscan
Any idea on how I can speed this up.
I mean running the codes first time after a system restart . second time any code runs it is fast because of the cache (?)

I am not sure what my remote clients system configuration would be .. may be even old pII with win98 ....

suhashegde
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