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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     Like and Missing; IS-NOT and NOT

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Like and Missing; IS-NOT and NOT
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nubi
Guru
posted
Hi All,

Cna anybody tell me why when you are using MISSING you have to use IS-NOT and when you are using LIKE you have to use NOT?

NOT LIKE ''
IS-NOT MISSING

it got me confused just now because i had used IS-NOT LIKE '' thinking it would be the same as it is for MISSING but it isn't.

anyone know why? seems an odd inconsistancy...


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"Never attribute to malice that which can be adequately explained by stupidity." - Heinlein's Razor
 
Posts: 285 | Location: UK | Registered: October 26, 2007Report This Post
jsn22
Member
posted Hide Post
Hi,

IS MISSING Command is equal to IS NULL Command in Oracle.

IS-NOT MISSING is equal to IS NOT NULL Command in Oracle.

I think now you will get clear idea about the differences.

Thanks,
Senthil


WebFOCUS version 8.1.05
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Posts: 15 | Registered: November 28, 2007Report This Post
Danny-SRL
Virtuoso
posted Hide Post
Nubi,

IS is synonym for EQ
IS-NOT is synonym for NE

When using MISSING IS and IS-NOT is more readable than EQ and NE

LIKE is a different operator which can be inversed (negated) with NOT.


Daniel
In Focus since 1982
wf 8.202M/Win10/IIS/SSA - WrapApp Front End for WF

 
Posts: 1980 | Location: Tel Aviv, Israel | Registered: March 23, 2006Report This Post
nubi
Guru
posted Hide Post
quote:
Originally posted by jsn22:
Hi,

IS MISSING Command is equal to IS NULL Command in Oracle.

IS-NOT MISSING is equal to IS NOT NULL Command in Oracle.

I think now you will get clear idea about the differences.

Thanks,
Senthil


Thanks for your reply Senhill but that wasn't what i had originally asked.

Danny,

I understand why EQ isn't used and that LIKE is a different operator but i would have thought that the same would follow for LIKE as grammatically .

WHERE FIELD IS MISSING
WHERE FIELD IS-NOT MISSING
WHERE FIELD IS LIKE
WHERE FIELD IS-NOT LIKE

are the same- if its more readable for MISSING the same must be true of LIKE- either way doesn't bother me but i expected them to be consistant. either sticking with NOT or IS-NOT for both.

what does everyone else think?


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"Never attribute to malice that which can be adequately explained by stupidity." - Heinlein's Razor
 
Posts: 285 | Location: UK | Registered: October 26, 2007Report This Post
hammo1j
Master
posted Hide Post
This all sounds a bit like teenager speak

LIKE IT IS-NOT. WHAT ARE U MISSING? LIKE U ARE SO NOT.

Gerry

In the same vein: Can we have 'WHATEVER' as a synonym for ELSE soon.


Server: WF 7.6.2 ( BID/Rcaster) Platform: W2003Server/IIS6/Tomcat/SQL Server repository Adapters: SQL Server 2000/Oracle 9.2
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Posts: 888 | Location: Airstrip One | Registered: October 06, 2006Report This Post
nubi
Guru
posted Hide Post
Yeah, i must have the 'Valley-Girl' edition of WF Good One


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"Never attribute to malice that which can be adequately explained by stupidity." - Heinlein's Razor
 
Posts: 285 | Location: UK | Registered: October 26, 2007Report This Post
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