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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [SOLVED] Internal Matrix

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Carroll
Member
posted
I tend to use a lot of DEFINEs in my reports, and not every DEFINE is used for every report. So rather than removing ones that aren't being used for a particular report, I leave them in there. When a particular DEFINE is not being used for a report, does FOCUS still add a column to the Internal Matrix?

I'm wondering if I am taking a performance hit for leaving DEFINEs in a TABLE request when they aren't needed.

Thanks,

Carroll Rinehart

This message has been edited. Last edited by: Kerry,


FOCUS 7.6.11 for Mainframe
z/OS - DB2 & Flat Files
Developer Studio 7.6.4
Windows XP Professional SP 2
Output: Excel, PDF
 
Posts: 10 | Location: Baltimore, MD | Registered: March 30, 2007Report This Post
GamP
Virtuoso
posted Hide Post
Defines take up memory space in the focus session (they have to be stored somewhere, don't they).
But the internal matrix contains only those fields that are neccessary for the report to be produced, whether they are direct fields or indirect. The latter are fields that will not be on the report itself, but that are mentioned in an expression that will be evaluated during the creation of the report. All other unused defines will not be present in the matrix.

Hope I expressed myself clearly.


GamP
- Using AS 8.2.01 on Windows 10 - IE11.
in Focus since 1988
 
Posts: 1961 | Location: Netherlands | Registered: September 25, 2007Report This Post
Carroll
Member
posted Hide Post
Yes you were very clear. I was hoping that was the case.

Thanks,

Carroll


FOCUS 7.6.11 for Mainframe
z/OS - DB2 & Flat Files
Developer Studio 7.6.4
Windows XP Professional SP 2
Output: Excel, PDF
 
Posts: 10 | Location: Baltimore, MD | Registered: March 30, 2007Report This Post
Darin Lee
Virtuoso
posted Hide Post
Not to get off the topic, but it works kind of the same way for joins. If you join two tables, but never use any information from the cross-referenced table, the join never occurs.

If a defined field is not a verb object (PRINT, SUM, or BY field or referenced in a heading), its as if the define never occurs. This would be a hard thing to discover on your own, but is an important thing to know for the sake of efficiency. This type of information is available in the FOCUS Internals class - probably the most useful IBI training class I ever took.


Regards,

Darin


In FOCUS since 1991
WF Server: 7.7.04 on Linux and Z/OS, ReportCaster, Self-Service, MRE, Java, Flex
Data: DB2/UDB, Adabas, SQL Server Output: HTML,PDF,EXL2K/07, PS, AHTML, Flex
WF Client: 77 on Linux w/Tomcat
 
Posts: 2298 | Location: Salt Lake City, Utah | Registered: February 02, 2007Report This Post
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