| 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 | 
    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.R | Title | User | Personal Name | Date | Lines | 
|---|---|---|---|---|---|
| 273.1 | What about Datatrieve ? | GVAADG::PERINO | Joel PERINO @GEO | Tue Oct 10 1989 05:06 | 17 | 
| 	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        
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| 273.2 | Improved Performance Date fields | ILO::BROCKLEBANK | Thu Dec 21 1989 09:44 | 18 | |
| 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
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