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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [SOLVED] WebFOCUS and relational operators

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[SOLVED] WebFOCUS and relational operators
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Gold member
posted
Hi everyone,

today I was really suprised when I saw the following line of WF code from a collegue (WF 7.7.03 - still works in 7.7.05)

 WHERE FIELD1 = &FILTER.QUOTEDSTRING; 


I though, well this will never work. But actually - yes - it does work.
While I could not find it anywhere in any document or this forum:

The assignment operator "=" can be used as a synonym for the relational op: "EQ".
I knew about "IS" - but "=" - well it known e.g. as the relational comparison op in SQL, Pascal ... but in WebFOCUS?

I also tried it in DM - and well, it works, too.

 
-SET &TEST = IF 0 = 1 THEN 'YES' ELSE 'NO';
-TYPE &TEST
-* a.m. &TEST matches
-SET &TEST = IF 0 EQ 1 THEN 'YES' ELSE 'NO';
-TYPE &TEST


But, as you might guess, and we are working in WebFOCUS: all the other known ops like "<", ">", "<>", "<=", ">=" -> they do not work / are not symbolic for "LT" etc.

I do not say, that I prefer "EQ" to "=", but hey - if we are ongoingly talking about WebFOCUS and code-tightening - why introduce 2 symbols for the equality operator (and not for the other relational operators).

IMHO this is the complete opposite of a tightend reporting language.

Cheers Linne

This message has been edited. Last edited by: <Kathryn Henning>,


WebFOCUS 7.7.03
 
Posts: 67 | Registered: January 05, 2011Report This Post
Expert
posted Hide Post
They never introduced the = to be equivalent to EQ, the code tightening hasn't caught up to this coding mistake yet.


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
Expert
posted Hide Post
Yes, its been there for a very long time.


Waz...

Prod:WebFOCUS 7.6.10/8.1.04Upgrade:WebFOCUS 8.2.07OS:LinuxOutputs:HTML, PDF, Excel, PPT
In Focus since 1984
Pity the lost knowledge of an old programmer!

 
Posts: 6347 | Location: 33°49'23.0"S, 151°11'41.0"E | Registered: October 31, 2006Report This Post
Virtuoso
posted Hide Post
It may stop working in WF 8.0.25 or WF 8.3.01 HotFix 7 or any other interesting release in the future. Better to get rid of it now and stick to the standard and documented operators Smiler



Prod/Dev: WF Server 8008/Win 2008 - WF Client 8008/Win 2008 - Dev. Studio: 8008/Windows 7 - DBMS: Oracle 11g Rel 2
Test: Dev. Studio 8008 /Windows 7 (Local) Output:HTML, EXL2K.
 
Posts: 1533 | Registered: August 12, 2005Report This Post
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