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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [SOLVED] How to use DECODE to assign null values?

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[SOLVED] How to use DECODE to assign null values?
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posted
I'm a webfocus newbie and am having trouble with getting a DECODE statement to work the way I would like it to.


TOTALPOINTS/I6 = DECODE QUESTION(Green 100 Red 0);


Basically for the QUESTION data set there are possible responses of "Green", "Red", and a few others. For any value QUESTION besides Green and Red, I would like TOTALPOINTS to be a null value.

The way it works now, if there is a question that is not green or red, the decode statement still presents you with a 0 as the result. I would like it to be NULL.

I'm having trouble accomplishing this and have reviewed the help documentation and searched through the forum without luck. Any help would be greatly appreciated!

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


WebFOCUS 7.6
Windows, All Outputs
 
Posts: 12 | Registered: January 24, 2013Report This Post
Francis Mariani
Expert
posted Hide Post
Putting the MISSING keyword in a DECODE crashes the agent, so you could change the DECODE to a series of IF ELSE statements:

TABLE FILE CAR
PRINT 
COUNTRY
COMPUTE TOTALPOINTS/I6 MISSING ON = 
-*DECODE COUNTRY('ENGLAND' 100 'ITALY' 0 ELSE MISSING);
IF COUNTRY EQ 'ENGLAND' THEN 100 ELSE IF COUNTRY EQ 'ITALY' THEN 0 ELSE MISSING;
END


Francis


Give me code, or give me retirement. In FOCUS since 1991

Production: WF 7.7.05M, Dev Studio, BID, MRE, WebSphere, DB2 / Test: WF 8.1.05M, App Studio, BI Portal, Report Caster, jQuery, HighCharts, Apache Tomcat, MS SQL Server
 
Posts: 10577 | Location: Toronto, Ontario, Canada | Registered: April 27, 2005Report This Post
FrankDutch
Virtuoso
posted Hide Post
Or do the decode with an extra ...
ELSE -1...
And in an second define change the minus 1 to a missing ..




Frank
prod: WF 7.6.10 platform Windows,
databases: msSQL2000, msSQL2005, RMS, Oracle, Sybase,IE7
test: WF 7.6.10 on the same platform and databases,IE7

 
Posts: 2387 | Location: Amsterdam, the Netherlands | Registered: December 03, 2006Report This Post
ok
Member
posted Hide Post
Thanks for the tips. I ended up doing something like

SCORE/I6 MISSING ON = IF DECODE ANSWER(NotApplicable 1 NotAsked 1) GT 0 THEN MISSING ELSE DECODE ANSWER(Green 100 Red 0);

That got me a null value where I wanted it Smiler


WebFOCUS 7.6
Windows, All Outputs
 
Posts: 12 | Registered: January 24, 2013Report This Post
Francis Mariani
Expert
posted Hide Post
Very creative! In all my years of FOCUSing, I've never used a DECODE within an IF statement...


Francis


Give me code, or give me retirement. In FOCUS since 1991

Production: WF 7.7.05M, Dev Studio, BID, MRE, WebSphere, DB2 / Test: WF 8.1.05M, App Studio, BI Portal, Report Caster, jQuery, HighCharts, Apache Tomcat, MS SQL Server
 
Posts: 10577 | Location: Toronto, Ontario, Canada | Registered: April 27, 2005Report This Post
jgelona
Master
posted Hide Post
I use DECODE in IF statements all the time when I need MISSING values. I would have coded the statement like this:
SCORE/I6 MISSING ON = IF ANSWER IN ('NotApplicable','NotAsked')
  THEN MISSING ELSE DECODE ANSWER(Green 100 Red 0);


In FOCUS since 1985. Prod WF 8.0.08 (z90/Suse Linux) DB (Oracle 11g), Self Serv, Report Caster, WebServer Intel/Linux.
 
Posts: 975 | Location: Oklahoma City | Registered: October 27, 2006Report This Post
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