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Conference ilbbak::ibi_focus

Title:FOCUS, from INFORMATION BUILDERS
Moderator:ZAYIUS::BROUILLETTE
Created:Thu Feb 19 1987
Last Modified:Mon May 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:615
Total number of notes:1779

273.0. "Focus/RDB performance problems" by BTOVT::STODDARD_N () Mon Oct 09 1989 10:36

    We're in the process of implementing a Focus/RDB Data Access
    environment and are finding performance extremely slow.  A Focus 
    procedure that used to take 5 seconds against Focus files now
    takes 45 seconds against RDB.  The same procedure takes 5 seconds
    using RDB or SQL.  The problem appears to be Focus against RDB.
    Does anyone have any suggestions for us.
    
    Nancy Stoddard (266-4425)
    
T.RTitleUserPersonal
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273.1What about Datatrieve ?GVAADG::PERINOJoel PERINO @GEOTue Oct 10 1989 06:0617
	We experienced the same performance problem with FOCUS/Rdb in 
	AMIS. AMIS produces short list or graph after the user has given
	few simple parameters using a user-friendly interface. 

	When we changed the file structure from RMS files to Rdb in 
	FEB-88 I did a test of performance and it was quite comparable.

	Since Rdb 3.0 has been installed the performance has dropped from
	10/15 seconds to  35/40	for an average report. We suspect FOCUS is 
	not coping very well with this new Rdb version.

	Because AMIS is a reporting tool for executive (EIS) the response
        time is a key factor so we redesigned the application using DTR/Rdb
        for list and graphics. The response time is now from 3 to 5 seconds
        for whatever kind of query.

	Jo�l        
273.2Improved Performance Date fieldsILO::BROCKLEBANKThu Dec 21 1989 09:4418
One problem 5.2 has is with RdB date fields.  It can't read them directly
and thus causes severe performance problems if your Fex is accessing
these date fields.

I believe version 5.5.1 & 5.2.2 of Focus can access RdB dates properly.
This not only makes it easier to set up master files, but also improves
performance.  These versions can also use the RdB index on a date field.

The .mas syntax is as follows

      FIELDNAME=DATE          ,ALIAS=DATE          ,YMD     ,DATE       ,$

the .acx

     FIELD=DATE,TYPE=ADT,$

Regards,
Dave